chore(repo-map): add auto-generated structural map

Generated with ~/.claude-shared/scripts/repo-map.sh (universal-ctags).
Signatures-only map of classes/functions/methods/interfaces/enums.

Amit Haridas

.github/workflows/ci.yml

@@ -23,3 +23,6 @@ jobs:
 
       - name: Run tests
         run: npm test
+
+      - name: Run linter
+        run: npm run lint

.github/workflows/release.yml

@@ -19,17 +19,17 @@ jobs:
           node-version: 20
           cache: npm
 
-      - name: Install rpmbuild
-        run: sudo apt-get update && sudo apt-get install -y rpm
-
       - name: Install dependencies
         run: npm ci
 
+      - name: Download external tools (pandoc)
+        run: node scripts/download-tools.js
+
       - name: Run tests
         run: npm test
 
       - name: Build Linux packages
-        run: npm run build:linux
+        run: npm run build:linux-ci -- --publish=never
 
       - name: Upload Linux artifacts
         uses: actions/upload-artifact@v4
@@ -43,7 +43,7 @@ jobs:
           retention-days: 5
 
   build-windows:
-    runs-on: ubuntu-latest
+    runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
 
@@ -53,17 +53,37 @@ jobs:
           node-version: 20
           cache: npm
 
-      - name: Install Wine and NSIS
-        run: |
-          sudo dpkg --add-architecture i386
-          sudo apt-get update
-          sudo apt-get install -y wine64 wine32 nsis
-
       - name: Install dependencies
         run: npm ci
 
-      - name: Build Windows packages
-        run: npm run build:win
+      - name: Download external tools (pandoc)
+        run: node scripts/download-tools.js
+
+      - name: Run tests
+        run: npm test
+
+      - name: Decode certificate (if available)
+        if: ${{ env.CSC_LINK_BASE64 != '' }}
+        shell: pwsh
+        env:
+          CSC_LINK_BASE64: ${{ secrets.CSC_LINK_BASE64 }}
+        run: |
+          $bytes = [Convert]::FromBase64String("$env:CSC_LINK_BASE64")
+          [IO.File]::WriteAllBytes("${{ github.workspace }}\code-signing-cert.pfx", $bytes)
+          echo "CERT_AVAILABLE=true" >> $env:GITHUB_ENV
+
+      - name: Build Windows packages (signed)
+        if: ${{ env.CERT_AVAILABLE == 'true' }}
+        env:
+          CSC_LINK: code-signing-cert.pfx
+          CSC_KEY_PASSWORD: ${{ secrets.CSC_KEY_PASSWORD }}
+        run: npm run build:win-signed -- --publish=never
+
+      - name: Build Windows packages (unsigned)
+        if: ${{ env.CERT_AVAILABLE != 'true' }}
+        env:
+          CSC_IDENTITY_AUTO_DISCOVERY: 'false'
+        run: npm run build:win-unsigned -- --publish=never
 
       - name: Upload Windows artifacts
         uses: actions/upload-artifact@v4
@@ -71,23 +91,26 @@ jobs:
           name: windows-artifacts
           path: |
             dist/*.exe
-            dist/*-win.zip
+            dist/*.zip
           retention-days: 5
 
   release:
     needs: [build-linux, build-windows]
+    if: always()
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
       - name: Download Linux artifacts
         uses: actions/download-artifact@v4
+        continue-on-error: true
         with:
           name: linux-artifacts
           path: dist
 
       - name: Download Windows artifacts
         uses: actions/download-artifact@v4
+        continue-on-error: true
         with:
           name: windows-artifacts
           path: dist

.gitignore

@@ -8,14 +8,22 @@ Thumbs.db
 *.swp
 *.swo
 *~
-.vscode/
+.vscode/*
+!.vscode/launch.json
 .idea/
 *.iml
 out/
 .cache/
 .npm/
 .electron/
-package-lock.json
+# package-lock.json is intentionally tracked for reproducible CI builds
+
+# Downloaded tool binaries (fetched at build time via scripts/download-tools.js)
+bin/
+
+# Code signing certificates — never commit private keys
+*.pfx
+*.p12
 
 # Screenshots and temp files
 *.png.bak
@@ -33,4 +41,8 @@ pdf\ modal.png
 # Claude/AI development files
 .claude/
 CLAUDE.md
-agents.mdcoverage/
+agents.md
+coverage/
+
+# Superpowers brainstorm artifacts
+.superpowers/

.vscode/launch.json

@@ -0,0 +1,48 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Debug Main Process",
+      "type": "node",
+      "request": "launch",
+      "cwd": "${workspaceFolder}",
+      "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron",
+      "windows": {
+        "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron.cmd"
+      },
+      "args": ["."],
+      "outputCapture": "std",
+      "env": {
+        "NODE_ENV": "development"
+      }
+    },
+    {
+      "name": "Debug Renderer Process",
+      "type": "chrome",
+      "request": "attach",
+      "port": 9222,
+      "webRoot": "${workspaceFolder}/src",
+      "timeout": 30000
+    },
+    {
+      "name": "Debug Main + Renderer",
+      "type": "node",
+      "request": "launch",
+      "cwd": "${workspaceFolder}",
+      "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron",
+      "windows": {
+        "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/electron.cmd"
+      },
+      "args": [".", "--remote-debugging-port=9222"],
+      "outputCapture": "std",
+      "env": {
+        "NODE_ENV": "development"
+      },
+      "serverReadyAction": {
+        "pattern": "listening on port ([0-9]+)",
+        "uriFormat": "http://localhost:%s",
+        "action": "debugWithChrome"
+      }
+    }
+  ]
+}

AGENTS.md

@@ -0,0 +1,25 @@
+# Repository Guidelines
+
+## Project Structure & Module Organization
+Core application code lives in `src/`. Use `src/main.js` for the Electron main process, `src/preload.js` for the preload bridge, and `src/renderer.js` plus `src/editor/`, `src/sidebar/`, `src/repl/`, and `src/utils/` for renderer-side features. Electron adapter code is in `src/adapters/electron/`. Reusable markdown/document templates live in `src/templates/`. Static assets and icons are in `assets/`. Tests are in `tests/`, and build output goes to `dist/`.
+
+## Build, Test, and Development Commands
+- `npm start`: launch the Electron app locally.
+- `npm test`: run the Jest suite once.
+- `npm run test:watch`: rerun tests during local development.
+- `npm run test:coverage`: generate coverage output.
+- `npm run lint` / `npm run lint:fix`: check or fix ESLint issues in `src` and `tests`.
+- `npm run format` / `npm run format:check`: apply or verify Prettier formatting.
+- `npm run build:linux`, `npm run build:win`, `npm run build:mac`: create platform packages with `electron-builder`.
+
+## Coding Style & Naming Conventions
+This repo uses Prettier and ESLint. Follow `.prettierrc`: 2-space indentation, single quotes, semicolons, trailing commas where valid in ES5, and a 100-character line width. Prefer `camelCase` for variables/functions, `PascalCase` for classes, and kebab-case for file names only when already established. Keep module boundaries clear: UI logic in renderer modules, OS/file-system work behind Electron IPC and adapters.
+
+## Testing Guidelines
+Tests use Jest with `jest-environment-jsdom`. Add new tests under `tests/` with `*.test.js` names, mirroring the feature area when possible, for example `tests/sidebar.test.js` or `tests/print-preview.test.js`. Update or add regression tests for renderer behavior, preload APIs, and utility helpers when fixing bugs. Run `npm test` before opening a PR; use `npm run test:coverage` for larger refactors.
+
+## Commit & Pull Request Guidelines
+Recent history follows Conventional Commit prefixes such as `feat:`, `fix:`, and `refactor:`. Keep subjects short and imperative, for example `fix: guard modal cleanup on close`. PRs should describe the user-visible change, note test coverage, link any related issue, and include screenshots or GIFs for UI changes.
+
+## Security & Configuration Tips
+Do not bypass preload boundaries or introduce direct `eval`/dynamic code paths; ESLint already treats these as errors. Export and conversion features depend on external tools such as Pandoc, FFmpeg, ImageMagick, and LibreOffice, so document any new runtime dependency in `README.md` and packaging config.

CLAUDE.md

@@ -0,0 +1,103 @@
+# CLAUDE.md — MarkdownConverter (master)
+
+> General code-quality, JavaScript, git, security, and testing standards are in the **global CLAUDE.md**. This file holds project- and branch-specific notes.
+
+## Project Overview
+
+Electron desktop app for Markdown editing and universal file conversion powered by Pandoc. Cross-platform (Win/macOS/Linux). Features: multi-tab editor with live preview, 25+ themes, PDF viewer/editor (merge/split/compress/rotate/watermark/password), export to 20+ formats (PDF/DOCX/ODT/EPUB/HTML/LaTeX/RTF/PPTX), batch conversion, syntax highlighting, diagram support (Mermaid), Git integration, and a plugin system.
+
+- **Version:** 4.4.5
+- **License:** MIT
+- **App ID:** `com.concreteinfo.markdownconverter`
+
+## Branch Specifics
+
+This is the **primary/release branch** — a vanilla JavaScript Electron app with no bundler or framework in the renderer. The renderer is a single large `renderer.js` (5,300+ lines) loaded directly via `src/index.html`. All UI is hand-rolled DOM manipulation.
+
+## Architecture
+
+### Main Process (`src/main.js` — 4,260 lines)
+Monolithic main process file. Contains all IPC handlers, Pandoc invocation, file operations, menu definitions (600+ lines), and window lifecycle. Key modules extracted:
+- `src/main/PDFOperations.js` — PDF manipulation via `pdf-lib` (merge, split, compress, rotate, delete, reorder, watermark, encrypt, decrypt, permissions)
+- `src/main/GitOperations.js` — Git status/stage/commit/log via `simple-git`
+
+### Renderer (`src/renderer.js` — 5,361 lines)
+Vanilla JS, no framework. Directly manipulates DOM. Loads CodeMirror 6 via `src/editor/codemirror-setup.js`. Uses `marked` + `highlight.js` + `DOMPurify` + `mermaid` for rendering. Lazy-loads sidebar panels, REPL, command palette, zen mode.
+
+### Preload (`src/preload.js` — 448 lines)
+Exists as IPC bridge, but **`contextIsolation: false` and `nodeIntegration: true`** — the renderer has full Node access. Preload is effectively a thin passthrough.
+
+### Security Model
+- `contextIsolation: false` + `nodeIntegration: true` (legacy; the react-electron branch fixes this)
+- Pandoc invoked via `execFile` (not `exec`) to prevent shell injection
+- Path traversal protection: `validatePath()`, `resolveWritablePath()`, blocks sensitive system dirs
+- Permission handler only allows `clipboard-read`/`clipboard-write`
+- Rate limiter on conversions (2-second minimum interval)
+- File size limit: 50MB
+- Error message sanitization strips absolute paths
+
+### Plugin System (`src/plugins/`)
+Manifest-based discovery (`manifest.json`). Built-in `writing-studio` plugin with sprint/goal/snapshot management. Plugin API exposed via `src/plugins/plugin-api.js`.
+
+### Settings
+Custom JSON file store at `<userData>/settings.json` (NOT `electron-store` despite the dependency). Recent files at `<userData>/recent-files.json`.
+
+## System Dependencies
+
+| Dependency | Required | Notes |
+|---|---|---|
+| **Node.js** | >= 20 | Electron 41 bundles Node 20.x |
+| **Pandoc** | Yes (for exports) | Downloaded to `bin/<platform>/pandoc` via `scripts/download-tools.js` (v3.9.0.2). Falls back to system PATH. Must be present for DOCX/ODT/EPUB/LaTeX/PPTX export. |
+| **FFmpeg** | Bundled | `ffmpeg-static` npm package; `asarUnpacked` for packaged builds |
+| **MiKTeX / TeX Live** | Optional | For LaTeX PDF export; MiKTeX PATH injected on Windows automatically |
+| **ImageMagick** | Optional | Linux image conversion; listed as deb dependency |
+| **LibreOffice** | Optional | Enhanced document conversion; listed as deb dependency |
+
+## Development Commands
+
+```bash
+npm start                  # Launch Electron app (dev mode)
+npm test                   # Jest test suite
+npm test:watch             # Jest in watch mode
+npm test:coverage          # Jest with coverage report
+npm run lint               # ESLint check (src + tests)
+npm run lint:fix           # ESLint auto-fix
+npm run format             # Prettier write
+npm run format:check       # Prettier check only
+npm run download-tools     # Download Pandoc binaries to bin/
+npm run generate-icons     # Generate app icons via sharp
+```
+
+## Build & Package
+
+**Tool:** `electron-builder` (v26.0.12), config inline in `package.json` (no separate config file).
+
+| Target | Platforms |
+|---|---|
+| `npm run build` | electron-builder (default platform) |
+| `npm run build:win` | Windows: NSIS installer + portable + zip (x64) |
+| `npm run build:mac` | macOS: default dmg |
+| `npm run build:linux` | Linux: deb + AppImage + snap |
+| `npm run dist` | Build without publish |
+| `npm run dist:all` | Build for all platforms |
+
+**Bundled with builds:** Pandoc binary per platform. FFmpeg via `ffmpeg-static` (asarUnpacked). NSIS installer uses custom script at `scripts/nsis-installer.nsh`.
+
+**Output:** `dist/` directory.
+
+**CI:** GitHub Actions workflows in `.github/workflows/` (ci.yml, release.yml).
+
+## Project Conventions / Gotchas
+
+- **No bundler/transpilation.** The app uses vanilla CommonJS JavaScript. `src/main.js` is loaded directly by Electron. No webpack, no Vite, no TypeScript, no Babel.
+- **Monolithic files.** `main.js` (4,260 lines) and `renderer.js` (5,361 lines) contain most logic. Not ideal but is the current state of this branch.
+- **CodeMirror 6** for the editor, configured in `src/editor/codemirror-setup.js`.
+- **PDF rendering** uses `pdfjs-dist`; **PDF manipulation** uses `pdf-lib` in the main process.
+- **Renderer security is weak** — full Node access in renderer. Do NOT introduce new privileged renderer code without understanding this.
+- **Pandoc is external.** Must be installed separately or downloaded via `npm run download-tools`. HTML and built-in PDF export work without Pandoc; other formats require it.
+- **PDF export fallback chain:** xelatex -> pdflatex -> lualatex -> Electron built-in `printToPDF()`.
+- **ESLint flat config** (`eslint.config.js`) with ECMAScript 2022. Prettier with 2-space indent, single quotes, semicolons, 100-char width.
+- **Tests:** Jest with jsdom environment, 15% coverage threshold. 24 test files in `tests/`.
+- **File associations:** `.md`, `.markdown`, `.pdf` registered at install.
+- **Single instance lock** enforced via `app.requestSingleInstanceLock()`.
+- **Adapters layer** (`src/adapters/`) abstracts file system operations for potential future non-Electron targets.

README.md

@@ -162,4 +162,4 @@ Amit Haridas (amit.wh@gmail.com)
 
 ## Version
 
-v3.0.0
+v4.4.5

docs/THREAT_MODEL.md

@@ -1,6 +1,6 @@
 # MarkdownConverter - STRIDE Threat Model Analysis
 
-**Version:** 4.0.0
+**Version:** 4.1.0
 **Date:** 2026-03-15
 **Methodology:** STRIDE + MITRE ATT&CK Mapping
 **Analyst:** Security Assessment Team

docs/plans/2026-04-06-writers-studio-design.md

@@ -0,0 +1,335 @@
+# Writer's Studio Feature Pack — Design Document
+
+**Date**: 2026-04-06
+**Version**: 4.2.0 target
+**Status**: Approved
+**Scope**: Three cohesive features to transform MarkdownConverter into a writing environment
+
+---
+
+## Overview
+
+The Writer's Studio Feature Pack adds three interconnected features to MarkdownConverter:
+
+1. **Zen Mode** — Distraction-free writing environment with typewriter scrolling
+2. **Document Outline** — Heading hierarchy sidebar panel for navigation
+3. **Writing Analytics** — Real-time readability and vocabulary analysis dashboard
+
+These features work together: Zen Mode creates the environment, Outline provides navigation, Analytics gives insight.
+
+---
+
+## Feature 1: Zen Mode
+
+### Purpose
+
+Transform the app from a multi-tool into a focused writing environment. Inspired by iA Writer, Typora, and Bear.
+
+### New Files
+
+- `src/zen-mode.js` — ZenMode class (~150 lines)
+- `src/styles-zen.css` — Zen mode specific styles (~120 lines)
+
+### Integration Points
+
+- `src/renderer.js` — Initialize ZenMode, register F11 shortcut, add View > Zen Mode menu
+- `src/editor/codemirror-setup.js` — Export typewriter + dimming extensions
+
+### Behavior
+
+**Toggle**: F11, View > Zen Mode, command palette "Toggle Zen Mode"
+**Exit**: Escape key, F11 again
+
+**What hides**:
+- Tab bar
+- Toolbar
+- Sidebar (collapsed)
+- Status bar
+- App header
+
+**What shows**:
+- Editor (full viewport)
+- Floating HUD (bottom-center, semi-transparent)
+
+### Floating HUD
+
+```
+┌─────────────────────────────────────────┐
+│  847 words  •  ~4 min  •  23:45 session │
+│  ████████████████░░░░  85% of 1000      │
+└─────────────────────────────────────────┘
+```
+
+- Word count (from existing status bar logic)
+- Estimated reading time (~200 wpm)
+- Session timer (starts when zen mode activates)
+- Optional progress bar toward word goal
+
+### CodeMirror Extensions
+
+**Typewriter Scroll** (`ViewPlugin`):
+- Listens to `EditorView.update` for selection changes
+- Calls `editor.dispatch({ effects: EditorView.scrollIntoView(pos, { y: 'center' }) })`
+- Smooth scrolling with `scrollBehavior: 'smooth'` in CSS
+
+**Line Dimming** (`ViewPlugin` + `Decoration`):
+- Builds a `DecorationSet` mapping each line to an opacity value
+- Active line: opacity 1.0
+- 1-2 lines away: 0.7
+- 3-4 lines away: 0.5
+- 5+ lines away: 0.3
+- Uses `Decoration.line({ attributes: { style: 'opacity: X' } })`
+
+### Centered Column
+
+CSS applied to `.zen-mode .cm-content`:
+```css
+.zen-mode .cm-content {
+    max-width: 700px;
+    margin: 0 auto;
+    font-size: 18px;
+    line-height: 1.8;
+}
+```
+
+### State Management
+
+- `this.previousState` stores which UI elements were visible before zen mode
+- On exit, restores all elements to their previous visibility
+- Editor content, cursor position, and scroll state are never modified
+
+---
+
+## Feature 2: Document Outline Panel
+
+### Purpose
+
+Provide always-visible heading navigation for documents of any length. The single most-requested navigation feature for multi-section documents.
+
+### New Files
+
+- `src/sidebar/outline-panel.js` — `renderOutlinePanel` function (~100 lines)
+
+### Modified Files
+
+- `src/index.html` — Add outline icon button in sidebar icons strip
+- `src/renderer.js` — Register 'outline' panel, provide editor reference
+
+### Sidebar Integration
+
+Uses existing `SidebarManager.registerPanel()` API:
+```javascript
+sidebarManager.registerPanel('outline', {
+    title: 'Outline',
+    render: (container) => renderOutlinePanel(container, editor, editorContent)
+});
+```
+
+New icon button in sidebar strip (after templates icon):
+```html
+<button class="sidebar-icon" data-panel="outline" title="Outline (Ctrl+Shift+O)">
+    <!-- hierarchy/list icon SVG -->
+</button>
+```
+
+### Parsing Logic
+
+Parse headings from raw markdown content using regex:
+```javascript
+const headingRegex = /^(#{1,6})\s+(.+)$/gm;
+```
+
+Returns array of:
+```javascript
+{ level: 1-6, text: "Heading Text", line: 42 }
+```
+
+Debounced at 300ms to avoid re-parsing on every keystroke.
+
+### UI Structure
+
+```
+┌──────────────────────────────────────────┐
+│  OUTLINE                          ☰      │
+├──────────────────────────────────────────┤
+│  ▸ Introduction                  (H1)    │
+│    ▸ Getting Started             (H2)    │
+│    ▸ Prerequisites               (H2)    │
+│      ▸ Node.js                   (H3) ◄  │
+│    ▸ Installation                (H2)    │
+│  ▸ Features                      (H1)    │
+│    ▸ Editor                      (H2)    │
+│    ▸ Export                      (H2)    │
+├──────────────────────────────────────────┤
+│  9 headings  •  2 H1  •  4 H2  •  3 H3  │
+└──────────────────────────────────────────┘
+```
+
+- Indentation based on heading level (H1 = 0px, H2 = 16px, H3 = 32px, etc.)
+- Current heading highlighted with accent color (◄ indicator)
+- Hover shows full heading text if truncated
+
+### Click-to-Navigate
+
+```javascript
+editor.dispatch({
+    effects: EditorView.scrollIntoView(linePos, { y: 'center' })
+});
+```
+
+Brief highlight animation on the target line (fades out over 500ms).
+
+### Current Heading Sync
+
+On editor update (debounced 100ms):
+1. Get cursor line number
+2. Find the last heading whose line number <= cursor line
+3. Set that heading as active in the outline
+
+### Empty State
+
+When no headings found:
+```
+No headings found
+
+Use # to create headings:
+# Heading 1
+## Heading 2
+### Heading 3
+```
+
+---
+
+## Feature 3: Writing Analytics
+
+### Purpose
+
+Give writers real-time insight into their document's readability, structure, and vocabulary. This is the "surprise" feature most Markdown editors lack.
+
+### New Files
+
+- `src/analytics/writing-analytics.js` — `WritingAnalytics` class (~180 lines)
+- `src/analytics/analytics-panel.js` — `renderAnalyticsPanel` function (~120 lines)
+
+### Integration Points
+
+- `src/renderer.js` — Register Ctrl+Shift+A shortcut, command palette entry, View menu item
+
+### Trigger
+
+- Keyboard: `Ctrl+Shift+A`
+- Command Palette: "Show Writing Analytics"
+- Menu: View > Writing Analytics
+
+### Presentation
+
+Uses existing `ModalManager` to show a modal overlay with analytics dashboard.
+
+```
+┌─────────────────────────────────────────────────────┐
+│  Writing Analytics                              ✕   │
+├─────────────────────────────────────────────────────┤
+│                                                      │
+│  ┌─ Readability ──────────────────────────────────┐ │
+│  │  Flesch Reading Ease:  67.3 (Standard)    ○   │ │
+│  │  Grade Level:          8.2              ○○○●○  │ │
+│  └─────────────────────────────────────────────────┘ │
+│                                                      │
+│  ┌─ Timing ───────────────────────────────────────┐ │
+│  │  Reading Time:   ~4 min                        │ │
+│  │  Speaking Time:  ~6 min                        │ │
+│  └─────────────────────────────────────────────────┘ │
+│                                                      │
+│  ┌─ Structure ────────────────────────────────────┐ │
+│  │  Sentences:  42  •  Paragraphs:  8            │ │
+│  │  Avg Sentence:  14.2 words                     │ │
+│  │  Longest:  38 words ("The quick brown fox...") │ │
+│  └─────────────────────────────────────────────────┘ │
+│                                                      │
+│  ┌─ Vocabulary ───────────────────────────────────┐ │
+│  │  Unique: 312 / 847 words (36.8%)               │ │
+│  │  Top: the(42) and(31) markdown(28) ...         │ │
+│  └─────────────────────────────────────────────────┘ │
+│                                                      │
+│  ┌─ Word Goal ────────────────────────────────────┐ │
+│  │  Target: [1000] words                          │ │
+│  │  ████████████████░░░░  847/1000 (85%)          │ │
+│  └─────────────────────────────────────────────────┘ │
+│                                                      │
+└─────────────────────────────────────────────────────┘
+```
+
+### Metrics Implementation
+
+**Readability (Flesch-Kincaid):**
+```javascript
+// Flesch Reading Ease
+ease = 206.835 - 1.015 * (words / sentences) - 84.6 * (syllables / words);
+
+// Flesch-Kincaid Grade Level
+grade = 0.39 * (words / sentences) + 11.8 * (syllables / words) - 15.59;
+```
+
+**Syllable Estimation:**
+```javascript
+function countSyllables(word) {
+    word = word.toLowerCase().replace(/(?:[^laeiouy]es|ed|[^laeiouy]e)$/, '');
+    word = word.replace(/^y/, '');
+    return word.match(/[aeiouy]{1,2}/g)?.length || 1;
+}
+```
+
+**Reading/Speaking Time:**
+- Reading: 200 words/minute
+- Speaking: 130 words/minute
+
+**Lexical Diversity:**
+- Ratio of unique words to total words (excluding stop words)
+
+**Top Words:**
+- Frequency map, sorted descending, top 10
+- Excludes common stop words (the, a, an, is, are, etc.)
+
+### Word Goal
+
+- Persisted in `electron-store` per document (or global default)
+- Progress bar with percentage
+- Celebration effect when goal is reached (brief confetti animation or green flash)
+
+### Update Cadence
+
+- Re-analyzes on editor content change (debounced at 1000ms)
+- If modal is open, updates live
+- If modal is closed, no computation (zero overhead)
+
+---
+
+## File Summary
+
+| File | Action | Purpose |
+|------|--------|---------|
+| `src/zen-mode.js` | Create | ZenMode class with CM6 extensions |
+| `src/styles-zen.css` | Create | Zen mode styling |
+| `src/sidebar/outline-panel.js` | Create | Outline sidebar panel |
+| `src/analytics/writing-analytics.js` | Create | Analytics computation engine |
+| `src/analytics/analytics-panel.js` | Create | Analytics modal UI |
+| `src/index.html` | Modify | Add outline icon, zen mode button |
+| `src/renderer.js` | Modify | Initialize all three features |
+| `src/editor/codemirror-setup.js` | Modify | Export typewriter + dimming extensions |
+
+## Keyboard Shortcuts
+
+| Shortcut | Feature | Action |
+|----------|---------|--------|
+| F11 | Zen Mode | Toggle on/off |
+| Escape | Zen Mode | Exit (when active) |
+| Ctrl+Shift+O | Outline | Open outline sidebar panel |
+| Ctrl+Shift+A | Analytics | Open analytics modal |
+
+## Dependencies
+
+No new npm dependencies required. All features use:
+- Existing CodeMirror 6 APIs (ViewPlugin, Decoration, scrollIntoView)
+- Existing SidebarManager API
+- Existing ModalManager API
+- Pure JavaScript math for analytics

docs/superpowers/specs/2026-04-14-v5-platform-design.md

@@ -0,0 +1,426 @@
+# MarkdownConverter v5.0 — Platform Design
+
+**Date:** 2026-04-14
+**Status:** Approved
+**Author:** Amit Haridas
+
+## Overview
+
+Transform MarkdownConverter from a monolithic editor into an extensible platform with a plugin system and three feature packs, shipped together as v5.0.
+
+## Subsystems
+
+1. **Plugin System** — Lightweight plugin registry with extension points (sidebar, commands, settings, status bar, export hooks, event bus)
+2. **Writing Studio Plugin** — Manuscript manager, goal tracking, writing sprints, snapshots, smart proofreading
+3. **AI Assistant Plugin** — Multi-provider AI writing assistant (Ollama, LMStudio, GGUF direct with GPU, Anthropic, OpenAI)
+4. **Collaboration Plugin** — Git-based async collaboration, comments/annotations, review requests
+
+## Core Principle
+
+**Existing functionality is never replaced or broken.** The plugin system is additive. All existing keyboard shortcuts, features, and UI remain untouched. Plugin shortcuts use `Ctrl+Alt+` namespace.
+
+---
+
+## 1. Plugin System
+
+### File Structure
+
+```
+src/
+  plugins/
+    plugin-registry.js      # Load, register, lifecycle
+    plugin-api.js            # Base class plugins extend
+    plugin-loader.js         # Discovers and validates manifests
+    built-in/
+      writing-studio/
+        manifest.json
+        index.js
+        panels/
+        components/
+      ai-assistant/
+        manifest.json
+        index.js
+        providers/
+      collaboration/
+        manifest.json
+        index.js
+```
+
+### Manifest Schema
+
+```json
+{
+  "id": "writing-studio",
+  "name": "Writing Studio",
+  "version": "1.0.0",
+  "description": "Manuscript management, goal tracking, writing sprints",
+  "icon": "pen-tool",
+  "extensionPoints": {
+    "sidebar": { "panel": "panels/manuscript-panel.js", "order": 30 },
+    "settings": { "section": "settings/index.js" },
+    "statusBar": { "indicators": ["sprint-timer", "word-goal"] },
+    "commands": [
+      { "id": "start-sprint", "label": "Start Writing Sprint", "shortcut": "Ctrl+Alt+S" },
+      { "id": "take-snapshot", "label": "Take Snapshot", "shortcut": "Ctrl+Alt+N" }
+    ],
+    "exportHooks": {
+      "preExport": "hooks/pre-export.js",
+      "postExport": "hooks/post-export.js"
+    }
+  },
+  "settings": [
+    { "key": "dailyGoal", "type": "number", "default": 1000, "label": "Daily word goal" },
+    { "key": "sprintDuration", "type": "number", "default": 25, "label": "Sprint duration (min)" }
+  ]
+}
+```
+
+### Plugin Lifecycle
+
+1. PluginLoader discovers manifests in `built-in/` + user plugins directory
+2. PluginRegistry validates manifests
+3. Each plugin calls `Plugin.init(context)` receiving scoped API context
+4. Extension points registered (sidebar panels, commands, status bar items)
+5. Plugins activate lazily — sidebar panel loads JS when user clicks tab
+
+### Plugin Context API
+
+Each plugin's `init()` receives:
+
+```javascript
+{
+  sidebar: {
+    registerPanel(id, { icon, title, component })
+  },
+  commands: {
+    register(id, label, handler, shortcut?)
+  },
+  statusBar: {
+    registerIndicator(id, { position, render })
+  },
+  settings: {
+    get(key),                    // plugin-scoped
+    set(key, value),             // auto-persisted via electron-store
+    onChanged(key, callback)
+  },
+  editor: {
+    getContent(),                // current document
+    getSelection(),              // selected text
+    insertAtCursor(text),        // requires opt-in
+    onContentChanged(callback)
+  },
+  events: {
+    on(event, handler),
+    emit(event, data)
+  },
+  exports: {
+    registerPreHook(handler),
+    registerPostHook(handler)
+  },
+  ipc: {
+    invoke(channel, ...args),
+    on(channel, handler)
+  }
+}
+```
+
+### Event Bus Events
+
+Each event has a versioned payload schema. Breaking changes increment the version suffix.
+
+```
+document:opened        → { filePath: string, tabId: string }
+document:saved         → { filePath: string, tabId: string }
+document:changed       → { tabId: string, content: string, wordCount: number }
+editor:selection-changed → { tabId: string, text: string, from: {line,ch}, to: {line,ch} }
+tab:switched           → { tabId: string, filePath: string }
+tab:closed             → { tabId: string, filePath: string }
+export:started         → { format: string, filePath: string }
+export:completed       → { format: string, filePath: string, outputPath: string }
+export:failed          → { format: string, error: string }
+plugin:loaded          → { pluginId: string, version: string }
+plugin:activated       → { pluginId: string }
+plugin:deactivated     → { pluginId: string }
+app:ready              → {}
+app:before-quit        → {}
+```
+
+### Design Rules
+
+- Built-in plugins use the same API as future third-party plugins
+- Lazy activation — sidebar panels don't load until clicked
+- Scoped settings: `plugins.<id>.<key>` in electron-store
+- Plugin commands globally unique — registry rejects duplicate command IDs at load time
+- **Plugin sandboxing**: each plugin handler is wrapped in try/catch. For CPU-intensive operations (AI inference, diff computation), plugins must delegate to main process via IPC. Handlers that block the renderer for >5s trigger a warning notification. Memory-hungry operations (GGUF inference) run in isolated child processes.
+- **Cross-plugin graceful degradation**: plugins check `context.events.hasHandler('ai:analyze')` before emitting cross-plugin requests. If no handler (AI plugin disabled), show a "this feature requires the AI plugin" prompt instead of failing silently. All cross-plugin calls have a 30s timeout with default fallback behavior.
+
+---
+
+## 2. Writing Studio Plugin
+
+### 2A. Manuscript / Project Manager
+
+Folder-based project structure:
+
+```
+~/Manuscripts/
+  my-novel/
+    .project.json          # { title, targets, metadata }
+    01-chapter-one.md
+    02-chapter-two.md
+    characters/
+      protagonist.md
+    research/
+      world-building.md
+    .snapshots/
+      2026-04-14T10-30.json
+```
+
+`.project.json`:
+
+```json
+{
+  "title": "My Novel",
+  "type": "manuscript",
+  "target": { "words": 80000, "deadline": "2026-09-01" },
+  "chapters": [
+    { "file": "01-chapter-one.md", "title": "The Beginning", "status": "draft" }
+  ],
+  "metadata": { "author": "", "genre": "", "synopsis": "" }
+}
+```
+
+Sidebar panel shows project tree with drag-to-reorder, word counts per chapter, target progress bar. "Compile manuscript" exports all chapters as a single document.
+
+### 2B. Goal Tracking & Writing Sprints
+
+- **Status bar**: daily progress bar + sprint timer
+- **Writing sprint**: configurable duration (15/25/30/45/60 min), word count delta, WPM at end
+- **Goal tracking**: daily/weekly word goals, streak tracking, 30-day bar chart
+- **Enhanced analytics**: session tracking, readability scores, productive time-of-day heatmap
+- Data stored in `plugins.writing-studio.history` as date-keyed map
+
+### 2C. Snapshot & Versioning
+
+- `Ctrl+Alt+N` or toolbar button saves snapshot
+- Stored as JSON: `{ timestamp, content, wordCount, cursorPos, label }`
+- Snapshot panel in sidebar: Restore, Diff (side-by-side), auto-snapshot interval
+- Snapshots in `.snapshots/` inside project folder, or app data if no project
+
+### 2D. Smart Proofreading
+
+Delegates to AI plugin via event bus. Writing Studio provides:
+- Right-click context menu: "Check grammar", "Suggest alternatives", "Analyze readability"
+- Inline wavy underline decorations for issues
+- Proofread panel: issues categorized by type with Accept/Dismiss
+
+### Commands
+
+| Command | Shortcut | Action |
+|---------|----------|--------|
+| `start-sprint` | `Ctrl+Alt+S` | Start writing sprint |
+| `stop-sprint` | `Ctrl+Alt+Shift+S` | Stop sprint |
+| `take-snapshot` | `Ctrl+Alt+N` | Save snapshot |
+| `restore-last-snapshot` | `Ctrl+Alt+Z` | Restore latest snapshot |
+| `new-project` | — | Create manuscript project |
+| `compile-manuscript` | `Ctrl+Alt+E` | Export all chapters |
+| `proofread-document` | `Ctrl+Alt+G` | AI proofread |
+
+---
+
+## 3. AI Assistant Plugin
+
+### Provider Architecture
+
+```
+AI Plugin
+  ├── Provider Interface
+  │     ├── complete(prompt, options) → string
+  │     ├── stream(prompt, options) → AsyncIterable
+  │     └── analyze(text, type) → AnalysisResult
+  │
+  ├── Providers
+  │     ├── OllamaProvider      — localhost:11434
+  │     ├── LMStudioProvider    — localhost:1234/v1
+  │     ├── GGUFProvider         — direct llama.cpp with GPU support
+  │     ├── AnthropicProvider    — Claude API
+  │     └── OpenAIProvider       — GPT API
+  │
+  └── Features
+        ├── Grammar/style check
+        ├── Inline auto-complete
+        ├── AI chat panel (sidebar)
+        ├── Document analysis
+        └── Smart commands (command palette)
+```
+
+### Provider Details
+
+**Ollama:** `GET /api/tags` for models, `POST /api/generate` and `POST /api/chat` for inference.
+
+**LMStudio:** OpenAI-compatible API at `localhost:1234/v1`. `GET /v1/models`, standard chat completion format, SSE streaming.
+
+**GGUF Direct (with GPU):**
+- Ships bundled llama.cpp binaries per platform (CUDA, Vulkan, Metal, CPU variants)
+- Auto-detects GPU: CUDA (nvidia-smi), Vulkan driver, Metal (macOS)
+- GPU layer offloading: configurable, auto-suggests based on VRAM vs model size
+- Settings: GPU backend selection, layer count, context length, thread count
+- "Keep model loaded" option for faster repeated requests
+- WASM fallback for sandboxed environments (CPU-only)
+- External binary path for advanced users with custom builds
+- **Process isolation**: llama.cpp runs as a spawned child process (not in main process). If it crashes, detected via exit handler, auto-restarted with notification. GPU memory freed on crash. App remains stable.
+- Process management: spawn in server mode on localhost ephemeral port, clean up on app quit or model unload
+
+**Cloud (Anthropic/OpenAI):**
+- API key stored encrypted via electron safeStorage
+- Token usage tracking with estimated cost
+- Rate limit awareness with request queueing and backoff
+
+### IPC Design
+
+All provider HTTP requests go through main process:
+- No CORS issues
+- API keys never in renderer
+- Main process enforces rate limiting
+- GGUF inference in isolated child process
+
+**Request/response lifecycle:**
+```
+Renderer → ipc.invoke('ai:complete') → Main → HTTP to provider → result → Renderer
+```
+
+**Streaming lifecycle with error handling:**
+```
+Renderer → ipc.invoke('ai:stream', { requestId, prompt })
+         ← Main assigns requestId, returns { requestId }
+         ← ipc.on('ai:chunk', { requestId, text }) — repeated
+         ← ipc.on('ai:done', { requestId }) — success
+         ← ipc.on('ai:error', { requestId, error }) — failure
+
+// Cancellation
+Renderer → ipc.invoke('ai:cancel', { requestId })
+         ← Main aborts HTTP request, emits 'ai:done'
+
+// Orphan cleanup: if renderer disconnects (crash/close),
+// main process detects via 'render-view-deleted' and aborts all active streams.
+// Heartbeat: if no chunk received in 30s, main emits 'ai:error' with timeout.
+```
+
+### Features
+
+1. **Inline suggestions**: ghost text after configurable delay, Tab to accept, Esc to dismiss
+2. **AI chat panel**: sidebar conversation, "Insert" / "Replace selection" buttons
+3. **Document analysis**: grammar, style, tone, with accept/reject per suggestion
+4. **Smart commands**: summarize, generate outline, find inconsistencies, translate, explain code
+
+### Privacy
+
+- Local-first: default provider is Ollama
+- No telemetry: requests go direct to provider
+- Content gating: exclude file types from AI
+- Status bar shows "AI: processing..." with cancel option
+- Cloud usage stats in settings (tokens, cost)
+
+### Cross-Plugin Integration
+
+```javascript
+// Writing Studio calls AI Plugin
+context.events.emit('ai:analyze', { text, type: 'grammar', callback });
+```
+
+---
+
+## 4. Collaboration Plugin
+
+### 4A. Enhanced Git Panel
+
+Upgrades to existing git panel:
+- Remote management (add/remove remotes, push/pull)
+- Branch list and switching
+- Commit history with diff viewer (side-by-side or unified)
+- Conflict resolution UI (accept-ours/accept-theirs/per-edit)
+
+### 4B. Shared Repository Workflow
+
+1. Writer A creates project + initializes git + pushes to shared repo
+2. Writer B clones repo from within MarkdownConverter
+3. Both write on their own branches
+4. Writer A creates review request (simplified PR)
+
+Review request: changed files, word count diff, commit messages. Reviewer can approve, request changes, leave inline comments. Reviews are git branches + comments as git notes.
+
+### 4C. Comments & Annotations
+
+Inline comments stored as JSON in `.comments/` directory (git-tracked):
+```json
+{
+  "id": "uuid",
+  "file": "03-chapter-three.md",
+  "anchor": {
+    "contextBefore": "The hero looked at the horizon and said,",
+    "selectedText": "I will not go quietly into that dark night",
+    "contextAfter": "He turned to face the army alone."
+  },
+  "line": 142,
+  "text": "This dialogue feels unnatural",
+  "author": "amit",
+  "timestamp": "2026-04-14T14:30:00Z",
+  "replies": [],
+  "resolved": false
+}
+```
+
+- **Anchor-based positioning**: comments store `contextBefore`, `selectedText`, and `contextAfter` (not absolute byte offsets). On file change, re-anchor by searching for the context text. If context no longer matches, mark comment as "detached" and show a warning. Falls back to `line` number as rough position.
+- Highlighted text in editor with tooltip on hover
+- Comment panel in sidebar: all unresolved comments across files
+- Resolution workflow: add → address → reply → resolve
+- Resolved comments dim but stay visible
+
+### 4D. Change Notifications
+
+- Status bar indicator: `↓ 3 new commits`
+- Click to see changes, one-click pull
+- Conflicts trigger resolution UI
+- Push button only when local commits ahead of remote
+
+### 4E. Offline-First
+
+All writing happens locally. Git is the sync mechanism. No internet required for writing, commenting, snapshots, or sprints. Push/pull on user action or auto-sync setting.
+
+### Commands
+
+| Command | Shortcut | Action |
+|---------|----------|--------|
+| `collab:commit` | `Ctrl+Shift+G` | Commit with message |
+| `collab:push` | — | Push current branch |
+| `collab:pull` | — | Pull from remote |
+| `collab:add-comment` | `Ctrl+Alt+C` | Comment on selection |
+| `collab:next-comment` | `F8` | Next unresolved comment |
+| `collab:prev-comment` | `Shift+F8` | Previous comment |
+| `collab:create-review` | — | Create review request |
+
+### Cross-Plugin Integration
+
+```javascript
+context.events.emit('snapshot:created', { file, snapshotId });
+context.events.on('project:chapter-opened', (chapter) => { /* load comments */ });
+context.events.on('comment:added', (comment) => { /* AI could suggest fix */ });
+```
+
+---
+
+## Bundle Size Impact
+
+- llama.cpp binaries: ~15MB per GPU variant. Only target platform shipped. GPU variants (CUDA/Vulkan/Metal) downloaded on demand if user enables GGUF direct loading — not bundled by default. Only CPU fallback bundled (~15MB).
+- Plugin system core: ~30KB
+- Each built-in plugin: ~50-100KB
+- Diff library (jsdiff): ~15KB
+- Total estimated increase: ~20-30MB (core), additional ~30-50MB per GPU variant (lazy download)
+
+## Testing Strategy
+
+- Plugin system: unit tests for registry, loader, context API mocking
+- Each plugin: isolated unit tests, integration tests via plugin context
+- AI provider tests: mock HTTP responses, test streaming parsing
+- Git tests: use test repository fixture
+- E2E: verify plugin loading doesn't break existing features

eslint.config.js

@@ -75,6 +75,7 @@ module.exports = [
         jest: 'readonly',
         describe: 'readonly',
         test: 'readonly',
+        it: 'readonly',
         expect: 'readonly',
         beforeEach: 'readonly',
         afterEach: 'readonly',

package.json

@@ -1,6 +1,6 @@
 {
   "name": "markdown-converter",
-  "version": "4.1.0",
+  "version": "4.4.5",
   "description": "Professional Markdown editor and universal file converter with PDF editing, batch processing, and syntax highlighting",
   "main": "src/main.js",
   "scripts": {
@@ -14,13 +14,16 @@
     "format:check": "prettier --check src tests",
     "build": "electron-builder",
     "build:win": "electron-builder --win",
-    "build:win-signed": "cross-env CSC_LINK=code-signing-cert.pfx CSC_KEY_PASSWORD=%CSC_KEY_PASSWORD% electron-builder --win",
+    "build:win-signed": "cross-env CSC_LINK=code-signing-cert.pfx electron-builder --win",
     "build:win-unsigned": "cross-env CSC_IDENTITY_AUTO_DISCOVERY=false electron-builder --win",
+    "create-cert": "powershell -ExecutionPolicy Bypass -File scripts/create-selfsigned-cert.ps1",
     "build:mac": "electron-builder --mac",
     "build:linux": "electron-builder --linux",
+    "build:linux-ci": "electron-builder --linux deb AppImage",
     "build:local": "electron-builder --linux --win",
     "dist": "electron-builder --publish=never",
     "dist:all": "electron-builder -mwl",
+    "download-tools": "node scripts/download-tools.js",
     "generate-icons": "node scripts/generate-icons.js"
   },
   "keywords": [
@@ -42,7 +45,7 @@
   "devDependencies": {
     "@testing-library/dom": "^10.4.1",
     "cross-env": "^10.0.0",
-    "electron": "^37.4.0",
+    "electron": "^41.1.1",
     "electron-builder": "^26.0.12",
     "eslint": "^9.39.2",
     "eslint-config-prettier": "^10.1.8",
@@ -70,9 +73,10 @@
     "codemirror": "^6.0.2",
     "core-util-is": "^1.0.3",
     "docx": "^9.6.0",
-    "docx4js": "^3.3.0",
+    "docx4js": "^2.0.1",
     "dompurify": "^3.3.1",
     "electron-store": "^10.1.0",
+    "ffmpeg-static": "^5.3.0",
     "highlight.js": "^11.11.1",
     "html2pdf.js": "^0.14.0",
     "marked": "^17.0.3",
@@ -89,11 +93,14 @@
   "overrides": {
     "jszip": "^3.10.1",
     "nth-check": "^2.1.1",
-    "lodash.pick": "npm:lodash@^4.17.21"
+    "lodash.pick": "npm:lodash@^4.17.21",
+    "lodash-es": "^4.18.1",
+    "lodash": "^4.17.21"
   },
   "build": {
     "appId": "com.concreteinfo.markdownconverter",
     "productName": "MarkdownConverter",
+    "copyright": "Copyright (C) 2024-2025 ConcreteInfo",
     "directories": {
       "output": "dist"
     },
@@ -105,6 +112,10 @@
       "node_modules/**/*",
       "package.json"
     ],
+    "asarUnpack": [
+      "node_modules/ffmpeg-static/**"
+    ],
+    "extraFiles": [],
     "fileAssociations": [
       {
         "ext": "md",
@@ -155,7 +166,15 @@
       ],
       "artifactName": "${productName}-${version}-${arch}.${ext}",
       "requestedExecutionLevel": "asInvoker",
-      "signAndEditExecutable": false
+      "legalTrademarks": "Copyright (C) 2024-2025 ConcreteInfo",
+      "verifyUpdateCodeSignature": false,
+      "signAndEditExecutable": false,
+      "extraFiles": [
+        {
+          "from": "bin/win32/pandoc.exe",
+          "to": "bin/pandoc.exe"
+        }
+      ]
     },
     "nsis": {
       "oneClick": false,
@@ -177,29 +196,24 @@
       "target": [
         "deb",
         "AppImage",
-        "snap",
-        "rpm"
+        "snap"
       ],
       "category": "Utility",
-      "maintainer": "ConcreteInfo <amit.wh@gmail.com>"
+      "maintainer": "ConcreteInfo <amit.wh@gmail.com>",
+      "extraFiles": [
+        {
+          "from": "bin/linux/pandoc",
+          "to": "bin/pandoc"
+        }
+      ]
     },
     "deb": {
       "depends": [
-        "pandoc",
-        "ffmpeg",
         "imagemagick",
         "libreoffice-common"
       ],
       "description": "Professional Markdown editor and universal file converter",
       "maintainer": "ConcreteInfo <amit.wh@gmail.com>"
-    },
-    "rpm": {
-      "depends": [
-        "pandoc",
-        "ffmpeg",
-        "ImageMagick",
-        "libreoffice-core"
-      ]
     }
   }
 }

repo-map.md

@@ -0,0 +1,604 @@
+# Repository Structure Map
+
+Auto-generated by `~/.claude-shared/scripts/repo-map.sh` (universal-ctags).
+Signatures only — classes, functions, methods, interfaces, enums, types, namespaces, traits.
+Regenerate after structural changes. Languages: `JavaScript,Sh`.
+
+```
+scripts/download-tools.js:
+  L22  method  extract (PANDOC_CONFIG.linux)
+  L36  method  extract (PANDOC_CONFIG.win32)
+  L51  method  extract (PANDOC_CONFIG.darwin)
+  L63  function  download
+  L70  function  get (download)
+  L109  function  downloadPandoc
+
+scripts/generate-icons.js:
+  L17  function  generateIcons
+
+src/adapters/electron/fs.js:
+  L20  method  readFile (electronFsAdapter)
+  L30  method  writeFile (electronFsAdapter)
+  L39  method  deleteFile (electronFsAdapter)
+  L48  method  ensureDir (electronFsAdapter)
+  L57  method  listDirectory (electronFsAdapter)
+  L77  method  exists (electronFsAdapter)
+  L86  method  isDirectory (electronFsAdapter)
+  L96  method  copy (electronFsAdapter)
+  L106  method  move (electronFsAdapter)
+
+src/analytics/analytics-panel.js:
+  L7  function  showAnalyticsModal
+  L105  function  escHandler (showAnalyticsModal)
+  L116  function  escapeHtml
+
+src/analytics/writing-analytics.js:
+  L77  function  countSyllables
+  L83  function  extractWords
+  L87  function  getReadabilityLabel
+  L95  function  analyze
+
+src/command-palette.js:
+  L1  class  CommandPalette
+  L2  method  constructor (CommandPalette)
+  L12  method  register (CommandPalette)
+  L16  method  open (CommandPalette)
+  L24  method  close (CommandPalette)
+  L28  method  isOpen (CommandPalette)
+  L32  method  setupEventListeners (CommandPalette)
+  L61  method  renderResults (CommandPalette)
+  L90  method  highlightMatch (CommandPalette)
+  L96  method  updateSelection (CommandPalette)
+  L105  method  executeSelected (CommandPalette)
+
+src/editor/codemirror-setup.js:
+  L46  function  createEditor
+  L61  function  onChange (createEditor)
+  L118  function  getLanguageExtension
+  L120  method  javascript (getLanguageExtension.loaders)
+  L124  method  html (getLanguageExtension.loaders)
+  L128  method  css (getLanguageExtension.loaders)
+  L132  method  json (getLanguageExtension.loaders)
+  L136  method  python (getLanguageExtension.loaders)
+
+src/main.js:
+  L18  function  getPandocPath
+  L36  function  getFFmpegPath
+  L55  function  sanitizeErrorMessage
+  L64  function  createRateLimiter
+  L66  function  canProceed (createRateLimiter)
+  L83  function  validatePath
+  L136  function  resolveWritablePath
+  L181  function  isPathAccessible
+  L203  function  convertDataToMarkdown
+  L225  function  runPandocCmd
+  L247  function  parseCommand
+  L282  method  get (store)
+  L291  method  set (store)
+  L488  function  checkPandocAvailability
+  L500  function  createWindow
+  L586  function  buildRecentFilesMenu
+  L599  method  click (buildRecentFilesMenu.anonymousObjectc5643c890c05)
+  L637  function  getRecentFiles
+  L647  function  createMenu
+  L872  method  click (createMenu.anonymousObjectc5643c890e05.anonymousObjectc5643c894505)
+  L1118  method  click (createMenu.anonymousObjectc5643c895205.anonymousObjectc5643c897e05)
+  L1279  method  click (createMenu.anonymousObjectc5643c899305.anonymousObjectc5643c89a505)
+  L1351  function  showAboutDialog
+  L1452  function  showDependenciesDialog
+  L1564  function  openPDFFile
+  L1583  function  openFile
+  L1622  function  openPdfFile
+  L1645  function  saveAsFile
+  L1664  function  exportFile
+  L1673  function  showExportOptionsDialog
+  L1676  function  showBatchConversionDialog
+  L1681  function  selectWordTemplate
+  L1705  function  showTemplateSettings
+  L1902  function  processDynamicFields
+  L1921  function  setDocxPageSize
+  L1980  function  addHeaderFooterToDocx
+  L2111  function  exportWordWithTemplate
+  L2153  function  exportPDFViaWordTemplate
+  L2231  function  showUniversalConverterDialog
+  L2236  function  showPDFEditorDialog
+  L2246  function  checkConverterAvailable
+  L2370  function  collectFiles
+  L2464  function  convertWithLibreOffice
+  L2498  function  convertWithImageMagick
+  L2507  function  convertWithFFmpeg
+  L2515  function  convertWithPandoc
+  L2521  function  performExportWithOptions
+  L2805  function  tryPdfFallback
+  L2882  function  showExportSuccess
+  L2892  function  exportWithPandoc
+  L2964  function  exportToHTML
+  L3080  function  exportToPDFElectron
+  L3224  function  exportSpreadsheet
+  L3233  function  importDocument
+  L3355  function  setTheme
+  L3536  function  extractTablesFromMarkdown
+  L3574  function  performBatchConversion
+  L3597  function  findMarkdownFiles (performBatchConversion)
+  L3636  function  processNextFile (performBatchConversion)
+  L3970  function  handleCLIConversion
+  L3997  function  showConversionDialog
+  L4064  function  performCLIConversion
+  L4098  function  buildPandocCommand
+  L4319  function  openFileFromPath
+  L4394  function  openAsciiGenerator
+  L4426  function  openTableGenerator
+  L4724  function  loadSnippets
+  L4734  function  saveSnippetsFile
+
+src/main/GitOperations.js:
+  L3  function  getGitInstance
+  L7  function  getStatus
+  L16  function  stage
+  L26  function  commit
+  L35  function  log
+
+src/main/PDFOperations.js:
+  L5  function  parsePageRanges
+  L28  function  hexToRgb
+  L39  function  pdfMerge
+  L59  function  pdfSplit
+  L126  function  pdfCompress
+  L152  function  pdfRotate
+  L182  function  pdfDeletePages
+  L208  function  pdfReorder
+  L233  function  pdfWatermark
+  L319  function  pdfEncrypt
+  L353  function  pdfDecrypt
+  L370  function  pdfSetPermissions
+  L404  function  executeOperation
+  L431  function  getPageCount
+
+src/plugins/built-in/_sample/index.js:
+  L3  class  SamplePlugin
+  L4  method  init (SamplePlugin)
+
+src/plugins/built-in/writing-studio/goal-tracker.js:
+  L3  class  GoalTracker
+  L7  method  constructor (GoalTracker)
+  L11  method  _getHistory (GoalTracker)
+  L16  method  _setHistory (GoalTracker)
+  L20  method  _setHistoryDay (GoalTracker)
+  L26  method  addWords (GoalTracker)
+  L37  method  getDailyProgress (GoalTracker)
+  L44  method  getStreak (GoalTracker)
+  L61  method  getLast30Days (GoalTracker)
+  L74  method  getWeeklyTotal (GoalTracker)
+
+src/plugins/built-in/writing-studio/index.js:
+  L7  class  WritingStudioPlugin
+  L8  method  init (WritingStudioPlugin)
+  L34  method  _registerCommands (WritingStudioPlugin)
+  L112  method  _registerStatusBar (WritingStudioPlugin)
+  L123  method  deactivate (WritingStudioPlugin)
+  L127  method  getEngines (WritingStudioPlugin)
+
+src/plugins/built-in/writing-studio/panels/goals-panel.js:
+  L1  function  renderGoalsPanel
+
+src/plugins/built-in/writing-studio/panels/manuscript-panel.js:
+  L1  function  renderManuscriptPanel
+
+src/plugins/built-in/writing-studio/panels/proofread-panel.js:
+  L1  function  renderProofreadPanel
+  L41  method  callback (anonymousObject39a0f0110105)
+  L50  function  renderIssues
+
+src/plugins/built-in/writing-studio/panels/snapshots-panel.js:
+  L1  function  renderSnapshotsPanel
+
+src/plugins/built-in/writing-studio/project-manager.js:
+  L1  class  ProjectManager
+  L5  method  constructor (ProjectManager)
+  L9  method  createProject (ProjectManager)
+  L21  method  loadProject (ProjectManager)
+  L27  method  _saveProject (ProjectManager)
+  L31  method  addChapter (ProjectManager)
+  L38  method  updateChapter (ProjectManager)
+  L45  method  compileManuscript (ProjectManager)
+  L56  method  getStats (ProjectManager)
+
+src/plugins/built-in/writing-studio/snapshot-manager.js:
+  L1  class  SnapshotManager
+  L6  method  constructor (SnapshotManager)
+  L11  method  _getAll (SnapshotManager)
+  L16  method  _saveAll (SnapshotManager)
+  L20  method  create (SnapshotManager)
+  L34  method  list (SnapshotManager)
+  L38  method  getById (SnapshotManager)
+  L42  method  restore (SnapshotManager)
+  L48  method  delete (SnapshotManager)
+  L53  method  diff (SnapshotManager)
+  L71  method  prune (SnapshotManager)
+
+src/plugins/built-in/writing-studio/sprint-engine.js:
+  L1  class  SprintEngine
+  L6  method  constructor (SprintEngine)
+  L14  method  start (SprintEngine)
+  L22  method  stop (SprintEngine)
+  L33  method  tick (SprintEngine)
+  L43  method  isActive (SprintEngine)
+  L47  method  getRemaining (SprintEngine)
+
+src/plugins/event-bus.js:
+  L1  class  EventBus
+  L2  method  constructor (EventBus)
+  L6  method  on (EventBus)
+  L13  method  off (EventBus)
+  L25  method  emit (EventBus)
+  L37  method  hasHandler (EventBus)
+
+src/plugins/plugin-api.js:
+  L1  class  PluginAPI
+  L7  method  init (PluginAPI)
+  L12  method  activate (PluginAPI)
+  L15  method  deactivate (PluginAPI)
+  L18  method  getManifest (PluginAPI)
+
+src/plugins/plugin-context.js:
+  L1  class  PluginContext
+  L14  method  constructor (PluginContext)
+  L23  method  register (PluginContext.constructor.commands)
+  L24  function  safeHandler (PluginContext.constructor.commands.register)
+  L65  method  registerPreHook (PluginContext.constructor.exports)
+  L68  method  registerPostHook (PluginContext.constructor.exports)
+
+src/plugins/plugin-loader.js:
+  L4  class  PluginLoader
+  L8  method  constructor (PluginLoader)
+  L17  method  discoverPlugins (PluginLoader)
+  L66  method  validateManifest (PluginLoader)
+
+src/plugins/plugin-registry.js:
+  L4  class  PluginRegistry
+  L5  method  constructor (PluginRegistry)
+  L15  method  register (PluginRegistry)
+  L49  method  getPlugin (PluginRegistry)
+  L53  method  getAll (PluginRegistry)
+  L57  method  activate (PluginRegistry)
+  L68  method  deactivate (PluginRegistry)
+
+src/plugins/settings-store.js:
+  L1  class  SettingsStore
+  L5  method  constructor (SettingsStore)
+  L9  method  get (SettingsStore)
+  L13  method  set (SettingsStore)
+  L17  method  onChanged (SettingsStore)
+
+src/preload.js:
+  L257  method  send (anonymousObjectb0724fcb0105)
+  L271  method  invoke (anonymousObjectb0724fcb0105)
+  L290  method  on (anonymousObjectb0724fcb0105)
+  L292  function  subscription (anonymousObjectb0724fcb0105.on)
+  L310  method  once (anonymousObjectb0724fcb0105)
+  L322  method  removeAllListeners (anonymousObjectb0724fcb0105)
+
+src/print-preview.js:
+  L1  class  PrintPreview
+  L2  method  constructor (PrintPreview)
+  L9  method  open (PrintPreview)
+  L20  method  close (PrintPreview)
+  L28  method  setupEventListeners (PrintPreview)
+  L53  method  updateScaleLabel (PrintPreview)
+  L59  method  updatePreview (PrintPreview)
+  L111  method  refreshPreview (PrintPreview)
+  L117  method  getOptions (PrintPreview)
+  L130  method  executePrint (PrintPreview)
+
+src/renderer.js:
+  L19  method  send (window.electronAPI)
+  L22  method  invoke (window.electronAPI)
+  L25  method  on (window.electronAPI)
+  L26  function  subscription (window.electronAPI.on)
+  L32  method  once (window.electronAPI)
+  L35  method  removeAllListeners (window.electronAPI)
+  L81  function  getSidebarManager
+  L85  function  getRenderTemplatesPanel
+  L90  function  getRenderExplorerPanel
+  L95  function  getRenderGitPanel
+  L99  function  getRenderSnippetsPanel
+  L105  function  getRenderOutlinePanel
+  L110  function  getReplPanel
+  L114  function  getCommandPalette
+  L118  function  getPrintPreview
+  L122  function  getCreateWelcomeContent
+  L127  function  getZenMode
+  L132  function  getShowAnalyticsModal
+  L137  function  ensureToastContainer
+  L147  function  notifyUser
+  L159  function  dismiss (notifyUser)
+  L173  method  highlight (anonymousObject71555c7b0405)
+  L202  method  start (anonymousObject71555c7b0705.anonymousObject71555c7b0805)
+  L205  method  tokenizer (anonymousObject71555c7b0705.anonymousObject71555c7b0805)
+  L221  method  renderer (anonymousObject71555c7b0705.anonymousObject71555c7b0805)
+  L241  function  plantumlEncode (notifyUser)
+  L249  function  scopeCSS (notifyUser)
+  L271  class  TabManager (notifyUser)
+  L272  method  constructor (notifyUser.TabManager)
+  L306  method  setupEventListeners (notifyUser.TabManager)
+  L354  method  createNewTab (notifyUser.TabManager)
+  L379  method  createPdfTab (notifyUser.TabManager)
+  L405  method  createPdfTabElements (notifyUser.TabManager)
+  L436  method  setupPdfTabEvents (notifyUser.TabManager)
+  L503  method  loadPdfInTab (notifyUser.TabManager)
+  L528  method  renderPdfPageInTab (notifyUser.TabManager)
+  L555  method  createTabElements (notifyUser.TabManager)
+  L580  method  onChange (anonymousObject71555c7b0d05)
+  L602  method  onUpdate (anonymousObject71555c7b0d05)
+  L614  method  switchToTab (notifyUser.TabManager)
+  L641  method  switchToNextTab (notifyUser.TabManager)
+  L647  method  closeTab (notifyUser.TabManager)
+  L692  method  updateTabBar (notifyUser.TabManager)
+  L718  method  updateUI (notifyUser.TabManager)
+  L748  method  saveCurrentTabState (notifyUser.TabManager)
+  L756  method  restoreTabState (notifyUser.TabManager)
+  L765  method  focusActiveEditor (notifyUser.TabManager)
+  L771  method  updatePreview (notifyUser.TabManager)
+  L800  method  _hash (notifyUser.TabManager)
+  L809  method  _renderPreview (notifyUser.TabManager)
+  L963  function  onerror (img)
+  L997  method  updatePreviewVisibility (notifyUser.TabManager)
+  L1010  method  updateLineNumbers (notifyUser.TabManager)
+  L1015  method  updateWordCount (notifyUser.TabManager)
+  L1031  method  updateCursorPosition (notifyUser.TabManager)
+  L1038  method  updateFilePath (notifyUser.TabManager)
+  L1046  method  updateBreadcrumb (notifyUser.TabManager)
+  L1054  method  setupEditorEvents (notifyUser.TabManager)
+  L1058  method  handleEditorInput (notifyUser.TabManager)
+  L1073  method  startAutoSave (notifyUser.TabManager)
+  L1081  method  stopAutoSave (notifyUser.TabManager)
+  L1087  method  performAutoSave (notifyUser.TabManager)
+  L1103  method  showAutoSaveIndicator (notifyUser.TabManager)
+  L1119  method  addToRecentFiles (notifyUser.TabManager)
+  L1135  method  getRecentFiles (notifyUser.TabManager)
+  L1145  method  setupToolbarEvents (notifyUser.TabManager)
+  L1215  method  wrapSelection (notifyUser.TabManager)
+  L1233  method  insertAtLineStart (notifyUser.TabManager)
+  L1249  method  insertTable (notifyUser.TabManager)
+  L1259  method  insertCodeBlock (notifyUser.TabManager)
+  L1277  method  insertHorizontalRule (notifyUser.TabManager)
+  L1280  method  setupFindEvents (notifyUser.TabManager)
+  L1350  method  performFind (notifyUser.TabManager)
+  L1384  method  findNext (notifyUser.TabManager)
+  L1390  method  findPrevious (notifyUser.TabManager)
+  L1399  method  highlightMatch (notifyUser.TabManager)
+  L1430  method  replaceOne (notifyUser.TabManager)
+  L1454  method  replaceAll (notifyUser.TabManager)
+  L1485  method  clearFindHighlights (notifyUser.TabManager)
+  L1492  method  checkForLargeFile (notifyUser.TabManager)
+  L1508  method  openFile (notifyUser.TabManager)
+  L1555  method  getEditorContent (notifyUser.TabManager)
+  L1564  method  setEditorContent (notifyUser.TabManager)
+  L1579  method  insertAtCursor (notifyUser.TabManager)
+  L1594  method  getSelection (notifyUser.TabManager)
+  L1602  method  replaceSelection (notifyUser.TabManager)
+  L1616  method  getCurrentContent (notifyUser.TabManager)
+  L1620  method  getCurrentFilePath (notifyUser.TabManager)
+  L1735  method  render (anonymousObject71555c7b2d05)
+  L1788  method  registerIndicator (anonymousObject71555c7b3105.statusBar)
+  L1881  function  onload (reader)
+  L2032  method  onChange (anonymousObject71555c7b3405)
+  L2040  method  onUpdate (anonymousObject71555c7b3405)
+  L2164  function  applyCustomPreviewCSS (notifyUser)
+  L2174  function  triggerLoadCustomCSS (notifyUser)
+  L2188  function  triggerClearCustomCSS (notifyUser)
+  L2202  function  updateFontSizes (notifyUser)
+  L2234  function  openPrintPreviewDialog (notifyUser)
+  L2255  function  showExportDialog (notifyUser)
+  L2269  function  hideExportDialog (notifyUser)
+  L2273  function  initializeExportForm (notifyUser)
+  L2343  function  collectExportOptions (notifyUser)
+  L2444  function  loadExportProfiles (notifyUser)
+  L2456  function  saveExportProfiles (notifyUser)
+  L2459  function  populateProfileDropdown (notifyUser)
+  L2476  function  saveCurrentProfile (notifyUser)
+  L2511  function  loadProfile (notifyUser)
+  L2545  function  deleteSelectedProfile (notifyUser)
+  L2679  function  onchange (input)
+  L2776  function  showBatchDialog (notifyUser)
+  L2796  function  hideBatchDialog (notifyUser)
+  L2799  function  updateBatchProgress (notifyUser)
+  L2816  function  validateBatchForm (notifyUser)
+  L3375  function  showUniversalConverterDialog (notifyUser)
+  L3383  function  updateConverterFormats (notifyUser)
+  L3423  function  updateConverterAdvancedOptions (notifyUser)
+  L3434  function  collectConverterAdvancedOptions (notifyUser)
+  L3645  function  showPDFEditorDialog (notifyUser)
+  L3769  function  hidePDFEditorDialog (notifyUser)
+  L3780  function  updateMergeFilesList (notifyUser)
+  L4107  function  getPDFStatusElement (notifyUser)
+  L4110  function  showPDFStatus (notifyUser)
+  L4117  function  clearPDFStatus (notifyUser)
+  L4124  function  showPDFValidationMessage (notifyUser)
+  L4135  function  processPDFOperation (notifyUser)
+  L4379  function  initMathSupport (notifyUser)
+  L4391  function  onload (katexJS)
+  L4396  function  onload (autoRenderJS)
+  L4417  function  openHeaderFooterDialog (notifyUser)
+  L4425  function  closeHeaderFooterDialog (notifyUser)
+  L4430  function  openFieldPickerDialog (notifyUser)
+  L4436  function  closeFieldPickerDialog (notifyUser)
+  L4477  function  toggleConfigContent (notifyUser)
+  L4488  function  saveHeaderFooterSettings (notifyUser)
+  L4509  function  browseForLogo (notifyUser)
+  L4519  function  clearLogo (notifyUser)
+  L4528  function  insertDynamicField (notifyUser)
+  L4594  function  showTableGenerator (notifyUser)
+  L4605  function  hideTableGenerator (notifyUser)
+  L4608  function  generateTablePreview (notifyUser)
+  L4616  function  generateMarkdownTable (notifyUser)
+  L4685  function  insertGeneratedTable (notifyUser)
+  L4742  function  showASCIIGenerator (notifyUser)
+  L4753  function  hideASCIIGenerator (notifyUser)
+  L4756  function  switchASCIIMode (notifyUser)
+  L4784  function  generateASCIIPreview (notifyUser)
+  L4802  function  textToASCII (notifyUser)
+  L5238  function  createASCIIBox (notifyUser)
+  L5312  function  getASCIITemplate (notifyUser)
+  L5469  function  loadASCIITemplate (notifyUser)
+  L5473  function  insertASCIIArt (notifyUser)
+  L5523  function  anonymousFunction71555c7bd300
+  L5603  function  getPdfjsLib (notifyUser)
+  L5612  function  openPdfFile (notifyUser)
+  L5627  function  renderPdfPage (notifyUser)
+  L5733  function  closePdfViewer (notifyUser)
+  L5783  function  openPdfEditorDialog (notifyUser)
+  L5831  function  initPaneResizer (notifyUser)
+  L5920  function  onPDFFileSelected (notifyUser)
+  L5935  function  loadPDFThumbnails (notifyUser)
+  L5966  function  renderThumbnailGrid (notifyUser)
+  L6060  function  renderThumbnail (notifyUser)
+  L6085  function  syncRotateInput (notifyUser)
+  L6094  function  syncDeleteInput (notifyUser)
+  L6103  function  syncReorderInput (notifyUser)
+
+src/repl/repl-panel.js:
+  L1  class  ReplPanel
+  L2  method  constructor (ReplPanel)
+  L8  method  setupEventListeners (ReplPanel)
+  L13  method  toggle (ReplPanel)
+  L19  method  show (ReplPanel)
+  L25  method  clear (ReplPanel)
+  L29  method  appendOutput (ReplPanel)
+  L42  method  escapeHtml (ReplPanel)
+
+src/sidebar/explorer-panel.js:
+  L1  function  renderExplorerPanel
+  L40  function  renderTree
+  L79  function  getFileIcon
+
+src/sidebar/git-panel.js:
+  L1  function  renderGitPanel
+  L24  function  loadGitStatus (renderGitPanel)
+
+src/sidebar/outline-panel.js:
+  L6  function  renderOutlinePanel
+  L18  function  parseHeadings (renderOutlinePanel)
+  L36  function  findActiveHeading (renderOutlinePanel)
+  L48  function  renderHeadings (renderOutlinePanel)
+  L89  function  escapeHtml (renderOutlinePanel)
+  L95  function  refresh (renderOutlinePanel)
+  L100  function  setActiveHeading (renderOutlinePanel)
+
+src/sidebar/sidebar-manager.js:
+  L1  class  SidebarManager
+  L2  method  constructor (SidebarManager)
+  L11  method  setupEventListeners (SidebarManager)
+  L20  method  registerPanel (SidebarManager)
+  L24  method  togglePanel (SidebarManager)
+  L32  method  expand (SidebarManager)
+  L45  method  collapse (SidebarManager)
+
+src/sidebar/snippets-panel.js:
+  L1  function  renderSnippetsPanel
+  L14  function  loadSnippets (renderSnippetsPanel)
+  L19  function  renderList (renderSnippetsPanel)
+
+src/sidebar/templates-panel.js:
+  L18  function  renderTemplatesPanel
+
+src/utils/ModalManager.js:
+  L5  class  ModalManager
+  L16  method  constructor (ModalManager)
+  L31  method  init (ModalManager)
+  L47  method  setupCloseTriggers (ModalManager)
+  L51  function  handler (ModalManager.setupCloseTriggers)
+  L65  function  handler
+  L74  method  getFocusableElements (ModalManager)
+  L89  method  trapFocus (ModalManager)
+  L111  method  handleKeydown (ModalManager)
+  L119  method  open (ModalManager)
+  L141  function  keydownHandler (ModalManager.open)
+  L164  method  close (ModalManager)
+  L182  function  addHidden (ModalManager.close)
+  L188  function  onTransitionEnd (ModalManager.close)
+  L223  method  isOpen (ModalManager)
+  L227  method  destroy (ModalManager)
+
+src/welcome.js:
+  L1  function  createWelcomeContent
+
+src/wordTemplateExporter.js:
+  L11  class  WordTemplateExporter
+  L12  method  constructor (WordTemplateExporter)
+  L24  method  preprocessMarkdownForWordExport (WordTemplateExporter)
+  L33  function  flush (WordTemplateExporter.preprocessMarkdownForWordExport)
+  L59  function  stripArtifacts (WordTemplateExporter.preprocessMarkdownForWordExport)
+
+src/zen-mode.js:
+  L10  class  ZenMode
+  L14  method  constructor (ZenMode)
+  L23  method  activate (ZenMode)
+  L65  method  deactivate (ZenMode)
+  L101  method  toggle (ZenMode)
+  L109  method  _applyTypewriterBehavior (ZenMode)
+  L111  function  scrollFn (ZenMode._applyTypewriterBehavior)
+  L151  method  _createHUD (ZenMode)
+  L169  method  _updateHUD (ZenMode)
+  L220  method  constructor (anonymousObject3acf7ce30205)
+  L240  function  getOpacity
+  L250  method  constructor (anonymousObject3acf7ce30405)
+
+tests/git-operations.test.js:
+  L26  function  asyncFn
+  L35  function  asyncFnWithError
+
+tests/main-utils.test.js:
+  L7  function  sanitizeErrorMessage
+  L49  function  createRateLimiter
+  L51  function  canProceed (createRateLimiter)
+
+tests/markdown-extensions.test.js:
+  L83  method  start (extension)
+  L86  method  tokenizer (extension)
+  L102  method  renderer (extension)
+  L151  function  plantumlEncode
+  L176  function  slugify
+  L203  function  scopeCSS
+
+tests/modal-manager.test.js:
+  L11  function  createModalElement
+
+tests/plugin-api.test.js:
+  L18  class  MyPlugin
+  L19  method  init (MyPlugin)
+
+tests/plugin-context.test.js:
+  L39  function  badHandler
+
+tests/plugin-loader.test.js:
+  L17  function  writeManifest
+
+tests/plugin-registry.test.js:
+  L5  class  TestPlugin
+  L6  method  init (TestPlugin)
+  L10  method  activate (TestPlugin)
+  L13  method  deactivate (TestPlugin)
+  L69  class  BadPlugin
+  L70  method  init (BadPlugin)
+
+tests/setup.js:
+  L96  function  error (console)
+
+tests/sidebar.test.js:
+  L41  method  render (anonymousObjectfe2d35d70105)
+  L52  method  render (anonymousObjectfe2d35d70205)
+  L62  method  render (anonymousObjectfe2d35d70305)
+  L68  method  render (anonymousObjectfe2d35d70405)
+  L80  method  render (anonymousObjectfe2d35d70505)
+  L88  method  render (anonymousObjectfe2d35d70605)
+  L96  method  render (anonymousObjectfe2d35d70705)
+  L120  method  render (anonymousObjectfe2d35d70905)
+  L130  method  render (anonymousObjectfe2d35d70a05)
+
+tests/utils.test.js:
+  L9  function  parseCommand
+  L78  function  hexToRgb
+  L121  function  getExtension
+  L133  function  replaceExtension
+```

scripts/create-selfsigned-cert.ps1

@@ -0,0 +1,59 @@
+# create-selfsigned-cert.ps1
+# Generates a self-signed code-signing certificate for local/development builds.
+#
+# Usage:
+#   powershell -ExecutionPolicy Bypass -File scripts/create-selfsigned-cert.ps1
+#   npm run create-cert
+#
+# Then build with:
+#   $env:CSC_LINK="code-signing-cert.pfx"; $env:CSC_KEY_PASSWORD="YourPassword"; npm run build:win-signed
+#
+# NOTE: Self-signed certificates will still show a SmartScreen warning for end users.
+# For production releases, obtain an OV or EV certificate from a trusted CA
+# (DigiCert, Sectigo, Certum, etc.). EV certificates bypass SmartScreen immediately.
+# Open-source projects can apply for free signing at https://signpath.io/
+
+param(
+    [string]$CertPassword = "MarkdownConverter2025",
+    [string]$OutputFile   = "code-signing-cert.pfx",
+    [string]$Subject      = "CN=ConcreteInfo, O=ConcreteInfo, L=India, C=IN"
+)
+
+Write-Host "Creating self-signed code-signing certificate..." -ForegroundColor Cyan
+
+# Create the certificate in the current user's certificate store
+$cert = New-SelfSignedCertificate `
+    -Type CodeSigningCert `
+    -Subject $Subject `
+    -CertStoreLocation "Cert:\CurrentUser\My" `
+    -NotAfter (Get-Date).AddYears(3) `
+    -HashAlgorithm SHA256 `
+    -KeyLength 4096 `
+    -KeyUsage DigitalSignature
+
+if (-not $cert) {
+    Write-Error "Failed to create certificate."
+    exit 1
+}
+
+Write-Host "Certificate created: $($cert.Thumbprint)" -ForegroundColor Green
+
+# Export to PFX
+$securePassword = ConvertTo-SecureString -String $CertPassword -Force -AsPlainText
+$exportPath = Join-Path (Get-Location) $OutputFile
+
+Export-PfxCertificate -Cert $cert -FilePath $exportPath -Password $securePassword | Out-Null
+
+if (Test-Path $exportPath) {
+    Write-Host "Certificate exported to: $exportPath" -ForegroundColor Green
+    Write-Host ""
+    Write-Host "To build a signed release:" -ForegroundColor Yellow
+    Write-Host '  $env:CSC_LINK="code-signing-cert.pfx"' -ForegroundColor White
+    Write-Host "  `$env:CSC_KEY_PASSWORD=`"$CertPassword`"" -ForegroundColor White
+    Write-Host "  npm run build:win-signed" -ForegroundColor White
+    Write-Host ""
+    Write-Host "IMPORTANT: Add code-signing-cert.pfx to .gitignore!" -ForegroundColor Red
+} else {
+    Write-Error "Export failed."
+    exit 1
+}

scripts/download-tools.js

@@ -0,0 +1,148 @@
+#!/usr/bin/env node
+/**
+ * Downloads pandoc binary for the current build platform.
+ * Run automatically via `npm run download-tools` before building.
+ * Skips download if binary already exists (idempotent).
+ */
+
+const https = require('https');
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+const os = require('os');
+const { execSync } = require('child_process');
+
+const PANDOC_VERSION = '3.9.0.2';
+
+const PANDOC_CONFIG = {
+  linux: {
+    url: `https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-linux-amd64.tar.gz`,
+    archiveExt: '.tar.gz',
+    destFile: 'pandoc',
+    extract(archivePath, destDir) {
+      const tmpDir = path.join(os.tmpdir(), `pandoc-${Date.now()}`);
+      fs.mkdirSync(tmpDir, { recursive: true });
+      execSync(`tar -xzf "${archivePath}" -C "${tmpDir}" pandoc-${PANDOC_VERSION}/bin/pandoc`);
+      const src = path.join(tmpDir, `pandoc-${PANDOC_VERSION}`, 'bin', 'pandoc');
+      fs.copyFileSync(src, path.join(destDir, 'pandoc'));
+      fs.chmodSync(path.join(destDir, 'pandoc'), 0o755);
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    },
+  },
+  win32: {
+    url: `https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-windows-x86_64.zip`,
+    archiveExt: '.zip',
+    destFile: 'pandoc.exe',
+    extract(archivePath, destDir) {
+      const tmpDir = path.join(os.tmpdir(), `pandoc-${Date.now()}`);
+      fs.mkdirSync(tmpDir, { recursive: true });
+      execSync(
+        `powershell -Command "Expand-Archive -Force '${archivePath}' '${tmpDir}'"`,
+      );
+      const src = path.join(tmpDir, `pandoc-${PANDOC_VERSION}`, 'pandoc.exe');
+      fs.copyFileSync(src, path.join(destDir, 'pandoc.exe'));
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    },
+  },
+  darwin: {
+    url: `https://github.com/jgm/pandoc/releases/download/${PANDOC_VERSION}/pandoc-${PANDOC_VERSION}-x86_64-macOS.zip`,
+    archiveExt: '.zip',
+    destFile: 'pandoc',
+    extract(archivePath, destDir) {
+      const tmpDir = path.join(os.tmpdir(), `pandoc-${Date.now()}`);
+      fs.mkdirSync(tmpDir, { recursive: true });
+      execSync(`unzip -o "${archivePath}" -d "${tmpDir}"`);
+      const src = path.join(tmpDir, `pandoc-${PANDOC_VERSION}`, 'bin', 'pandoc');
+      fs.copyFileSync(src, path.join(destDir, 'pandoc'));
+      fs.chmodSync(path.join(destDir, 'pandoc'), 0o755);
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    },
+  },
+};
+
+function download(url, destPath) {
+  return new Promise((resolve, reject) => {
+    const file = fs.createWriteStream(destPath);
+    let received = 0;
+    let total = 0;
+    let lastPct = -1;
+
+    function get(redirectUrl) {
+      const client = redirectUrl.startsWith('https://') ? https : http;
+      client
+        .get(redirectUrl, (res) => {
+          if (res.statusCode === 301 || res.statusCode === 302) {
+            get(res.headers.location);
+            return;
+          }
+          if (res.statusCode !== 200) {
+            reject(new Error(`HTTP ${res.statusCode} for ${redirectUrl}`));
+            return;
+          }
+          total = parseInt(res.headers['content-length'] || '0', 10);
+          res.on('data', (chunk) => {
+            received += chunk.length;
+            if (total > 0) {
+              const pct = Math.floor((received / total) * 100);
+              if (pct !== lastPct && pct % 10 === 0) {
+                process.stdout.write(`  ${pct}%\r`);
+                lastPct = pct;
+              }
+            }
+          });
+          res.pipe(file);
+          file.on('finish', () => {
+            file.close();
+            process.stdout.write('  100%\n');
+            resolve();
+          });
+        })
+        .on('error', (err) => {
+          fs.unlink(destPath, () => {});
+          reject(err);
+        });
+    }
+    get(url);
+  });
+}
+
+async function downloadPandoc() {
+  const platform = process.platform;
+  const config = PANDOC_CONFIG[platform];
+
+  if (!config) {
+    console.log(`[download-tools] No pandoc config for platform "${platform}" — skipping.`);
+    return;
+  }
+
+  const destDir = path.join(__dirname, '..', 'bin', platform);
+  const destFile = path.join(destDir, config.destFile);
+
+  if (fs.existsSync(destFile)) {
+    console.log(`[download-tools] pandoc already present at ${destFile} — skipping.`);
+    return;
+  }
+
+  fs.mkdirSync(destDir, { recursive: true });
+
+  const tmpArchive = path.join(os.tmpdir(), `pandoc-download${config.archiveExt}`);
+
+  console.log(`[download-tools] Downloading pandoc ${PANDOC_VERSION} for ${platform}...`);
+  await download(config.url, tmpArchive);
+
+  console.log(`[download-tools] Extracting to ${destDir}...`);
+  config.extract(tmpArchive, destDir);
+
+  try {
+    fs.unlinkSync(tmpArchive);
+  } catch (_) {
+    /* ignore */
+  }
+
+  console.log(`[download-tools] pandoc ready: ${destFile}`);
+}
+
+downloadPandoc().catch((err) => {
+  console.error('[download-tools] FAILED:', err.message);
+  process.exit(1);
+});

src/adapters/electron/fs.js

@@ -4,7 +4,7 @@
  * Implements file system operations for Electron using IPC.
  * This abstracts file operations to enable easier testing and migration.
  *
- * @version 4.1.0
+ * @version 4.4.1
  */
 
 /**
@@ -12,96 +12,100 @@
  * @type {import('../types').FileSystemAdapter}
  */
 const electronFsAdapter = {
-    /**
-     * Read file content
-     * @param {string} path - File path
-     * @returns {Promise<string>} File content
-     */
-    async readFile(path) {
-        return await window.electronAPI.readFile(path);
-    },
+  /**
+   * Read file content
+   * @param {string} path - File path
+   * @returns {Promise<string>} File content
+   */
+  async readFile(path) {
+    return await window.electronAPI.file.read(path);
+  },
 
-    /**
-     * Write content to file
-     * @param {string} path - File path
-     * @param {string} content - File content
-     * @returns {Promise<void>}
-     */
-    async writeFile(path, content) {
-        return await window.electronAPI.writeFile(path, content);
-    },
+  /**
+   * Write content to file
+   * @param {string} path - File path
+   * @param {string} content - File content
+   * @returns {Promise<void>}
+   */
+  async writeFile(path, content) {
+    return await window.electronAPI.file.write(path, content);
+  },
 
-    /**
-     * Delete file
-     * @param {string} path - File path
-     * @returns {Promise<void>}
-     */
-    async deleteFile(path) {
-        // TODO: Add IPC channel for delete
-        throw new Error('deleteFile not implemented');
-    },
+  /**
+   * Delete file
+   * @param {string} path - File path
+   * @returns {Promise<void>}
+   */
+  async deleteFile(path) {
+    return await window.electronAPI.file.delete(path);
+  },
 
-    /**
-     * Ensure directory exists
-     * @param {string} path - Directory path
-     * @returns {Promise<void>}
-     */
-    async ensureDir(path) {
-        // TODO: Add IPC channel for ensureDir
-        throw new Error('ensureDir not implemented');
-    },
+  /**
+   * Ensure directory exists
+   * @param {string} path - Directory path
+   * @returns {Promise<void>}
+   */
+  async ensureDir(path) {
+    return await window.electronAPI.file.ensureDir(path);
+  },
 
-    /**
-     * List directory contents
-     * @param {string} path - Directory path
-     * @returns {Promise<Array<import('../types').FileInfo>>}
-     */
-    async listDirectory(path) {
-        // TODO: Add IPC channel for listDirectory
-        throw new Error('listDirectory not implemented');
-    },
-
-    /**
-     * Check if path exists
-     * @param {string} path - Path to check
-     * @returns {Promise<boolean>}
-     */
-    async exists(path) {
-        // TODO: Add IPC channel for exists
-        throw new Error('exists not implemented');
-    },
-
-    /**
-     * Check if path is a directory
-     * @param {string} path - Path to check
-     * @returns {Promise<boolean>}
-     */
-    async isDirectory(path) {
-        // TODO: Add IPC channel for isDirectory
-        throw new Error('isDirectory not implemented');
-    },
-
-    /**
-     * Copy file or directory
-     * @param {string} source - Source path
-     * @param {string} dest - Destination path
-     * @returns {Promise<void>}
-     */
-    async copy(source, dest) {
-        // TODO: Add IPC channel for copy
-        throw new Error('copy not implemented');
-    },
-
-    /**
-     * Move file or directory
-     * @param {string} source - Source path
-     * @param {string} dest - Destination path
-     * @returns {Promise<void>}
-     */
-    async move(source, dest) {
-        // TODO: Add IPC channel for move
-        throw new Error('move not implemented');
+  /**
+   * List directory contents
+   * @param {string} path - Directory path
+   * @returns {Promise<Array<import('../types').FileInfo>>}
+   */
+  async listDirectory(path) {
+    const result = await window.electronAPI.invoke('list-directory', path);
+    if (!result?.entries) {
+      return [];
     }
+
+    return result.entries.map((entry) => ({
+      name: entry.name,
+      isDir: entry.isDirectory,
+      size: entry.size ?? 0,
+      modified: entry.modified ?? 0,
+      path: entry.path,
+    }));
+  },
+
+  /**
+   * Check if path exists
+   * @param {string} path - Path to check
+   * @returns {Promise<boolean>}
+   */
+  async exists(path) {
+    return await window.electronAPI.file.exists(path);
+  },
+
+  /**
+   * Check if path is a directory
+   * @param {string} path - Path to check
+   * @returns {Promise<boolean>}
+   */
+  async isDirectory(path) {
+    return await window.electronAPI.file.isDirectory(path);
+  },
+
+  /**
+   * Copy file or directory
+   * @param {string} source - Source path
+   * @param {string} dest - Destination path
+   * @returns {Promise<void>}
+   */
+  async copy(source, dest) {
+    return await window.electronAPI.file.copy(source, dest);
+  },
+
+  /**
+   * Move file or directory
+   * @param {string} source - Source path
+   * @param {string} dest - Destination path
+   * @returns {Promise<void>}
+   */
+  async move(source, dest) {
+    return await window.electronAPI.file.move(source, dest);
+  },
 };
 
 module.exports = { electronFsAdapter };

src/adapters/types.js

@@ -5,7 +5,7 @@
  * Adapters abstract file system, conversion, and system operations
  * to enable easier testing and future platform migration.
  *
- * @version 4.1.0
+ * @version 4.4.1
  */
 
 /**
@@ -129,5 +129,5 @@
  */
 
 module.exports = {
-    // Type definitions are JSDoc only, no runtime exports needed
+  // Type definitions are JSDoc only, no runtime exports needed
 };

src/analytics/analytics-panel.js

@@ -0,0 +1,122 @@
+/**
+ * Writing Analytics Panel — modal overlay displaying analytics dashboard
+ */
+
+const { analyze } = require('./writing-analytics');
+
+function showAnalyticsModal(tabManager) {
+  const existing = document.getElementById('analytics-modal');
+  if (existing) existing.remove();
+
+  const content = tabManager.getEditorContent();
+  const metrics = analyze(content);
+
+  const overlay = document.createElement('div');
+  overlay.id = 'analytics-modal';
+  overlay.className = 'analytics-overlay';
+
+  const maxCount = metrics.topWords.length > 0 ? metrics.topWords[0].count : 1;
+
+  overlay.innerHTML = `
+        <div class="analytics-modal">
+            <div class="analytics-header">
+                <h2>Writing Analytics</h2>
+                <button class="analytics-close" title="Close">&times;</button>
+            </div>
+            <div class="analytics-body">
+                <div class="analytics-section">
+                    <h3>Readability</h3>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Flesch Reading Ease</span>
+                        <span class="analytics-value">${metrics.fleschEase}<small>${metrics.readabilityLabel}</small></span>
+                    </div>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Grade Level</span>
+                        <span class="analytics-value">${metrics.fleschGrade}</span>
+                    </div>
+                    <div class="readability-meter">
+                        <div class="readability-fill" style="width: ${Math.max(0, Math.min(100, metrics.fleschEase))}%"></div>
+                    </div>
+                </div>
+
+                <div class="analytics-section">
+                    <h3>Timing</h3>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Reading Time</span>
+                        <span class="analytics-value">~${metrics.readingTime} min</span>
+                    </div>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Speaking Time</span>
+                        <span class="analytics-value">~${metrics.speakingTime} min</span>
+                    </div>
+                </div>
+
+                <div class="analytics-section">
+                    <h3>Structure</h3>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Sentences</span>
+                        <span class="analytics-value">${metrics.sentenceCount} &bull; Paragraphs: ${metrics.paragraphCount}</span>
+                    </div>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Avg Sentence</span>
+                        <span class="analytics-value">${metrics.avgSentenceLength} words</span>
+                    </div>
+                    ${
+                      metrics.longestSentenceLength > 0
+                        ? `
+                    <div class="analytics-row analytics-longest">
+                        <span class="analytics-label">Longest (${metrics.longestSentenceLength} words)</span>
+                        <span class="analytics-value analytics-sentence-preview">${escapeHtml(metrics.longestSentence)}</span>
+                    </div>`
+                        : ''
+                    }
+                </div>
+
+                <div class="analytics-section">
+                    <h3>Vocabulary</h3>
+                    <div class="analytics-row">
+                        <span class="analytics-label">Unique</span>
+                        <span class="analytics-value">${metrics.uniqueWordCount} / ${metrics.wordCount}<small>${metrics.lexicalDiversity}%</small></span>
+                    </div>
+                    ${
+                      metrics.topWords.length > 0
+                        ? `
+                    <div class="word-cloud">
+                        ${metrics.topWords
+                          .map((w) => {
+                            const scale = 13 + Math.round((w.count / maxCount) * 3);
+                            return `<span class="word-tag" style="font-size:${scale}px">${escapeHtml(w.word)}<small>${w.count}</small></span>`;
+                          })
+                          .join('')}
+                    </div>`
+                        : ''
+                    }
+                </div>
+            </div>
+        </div>
+    `;
+
+  const closeBtn = overlay.querySelector('.analytics-close');
+  closeBtn.addEventListener('click', () => overlay.remove());
+  overlay.addEventListener('click', (e) => {
+    if (e.target === overlay) overlay.remove();
+  });
+
+  const escHandler = (e) => {
+    if (e.key === 'Escape') {
+      overlay.remove();
+      document.removeEventListener('keydown', escHandler);
+    }
+  };
+  document.addEventListener('keydown', escHandler);
+
+  document.body.appendChild(overlay);
+}
+
+function escapeHtml(str) {
+  const div = document.createElement('div');
+  div.textContent = str;
+  return div.innerHTML;
+}
+
+module.exports = { showAnalyticsModal };

src/analytics/writing-analytics.js

@@ -0,0 +1,200 @@
+/**
+ * Writing Analytics — pure computation engine
+ * No DOM dependencies. Exported analyze(text) returns a metrics object.
+ */
+
+const STOP_WORDS = new Set([
+  'the',
+  'a',
+  'an',
+  'is',
+  'are',
+  'was',
+  'were',
+  'be',
+  'been',
+  'have',
+  'has',
+  'had',
+  'do',
+  'does',
+  'did',
+  'will',
+  'would',
+  'could',
+  'should',
+  'to',
+  'of',
+  'in',
+  'for',
+  'on',
+  'with',
+  'at',
+  'by',
+  'from',
+  'as',
+  'and',
+  'or',
+  'but',
+  'if',
+  'it',
+  'its',
+  'this',
+  'that',
+  'these',
+  'those',
+  'i',
+  'me',
+  'my',
+  'we',
+  'our',
+  'you',
+  'your',
+  'he',
+  'him',
+  'his',
+  'she',
+  'her',
+  'they',
+  'them',
+  'their',
+  'not',
+  'no',
+  'so',
+  'than',
+  'too',
+  'very',
+  'also',
+  'just',
+  'about',
+  'up',
+  'out',
+  'what',
+  'which',
+  'who',
+]);
+
+function countSyllables(word) {
+  word = word.toLowerCase().replace(/(?:[^laeiouy]es|ed|[^laeiouy]e)$/, '');
+  word = word.replace(/^y/, '');
+  return word.match(/[aeiouy]{1,2}/gi)?.length || 1;
+}
+
+function extractWords(text) {
+  return text.match(/[a-zA-Z]+(?:['-][a-zA-Z]+)*/g) || [];
+}
+
+function getReadabilityLabel(score) {
+  if (score >= 90) return 'Very Easy';
+  if (score >= 70) return 'Easy';
+  if (score >= 50) return 'Standard';
+  if (score >= 30) return 'Difficult';
+  return 'Very Difficult';
+}
+
+function analyze(text) {
+  if (!text || !text.trim()) {
+    return {
+      wordCount: 0,
+      sentenceCount: 0,
+      paragraphCount: 0,
+      fleschEase: 0,
+      fleschGrade: 0,
+      readabilityLabel: 'N/A',
+      readingTime: 0,
+      speakingTime: 0,
+      uniqueWordCount: 0,
+      lexicalDiversity: 0,
+      avgSentenceLength: 0,
+      longestSentence: '',
+      longestSentenceLength: 0,
+      topWords: [],
+    };
+  }
+
+  const words = extractWords(text);
+  const wordCount = words.length;
+
+  const sentences = text
+    .split(/[.!?]+/)
+    .map((s) => s.trim())
+    .filter(Boolean);
+  const sentenceCount = Math.max(sentences.length, 1);
+
+  const paragraphs = text
+    .split(/\n\s*\n/)
+    .map((p) => p.trim())
+    .filter(Boolean);
+  const paragraphCount = Math.max(paragraphs.length, 1);
+
+  let totalSyllables = 0;
+  for (const w of words) {
+    totalSyllables += countSyllables(w);
+  }
+
+  const fleschEase =
+    Math.round(
+      (206.835 - 1.015 * (wordCount / sentenceCount) - 84.6 * (totalSyllables / wordCount)) * 10
+    ) / 10;
+  const fleschGrade =
+    Math.round(
+      (0.39 * (wordCount / sentenceCount) + 11.8 * (totalSyllables / wordCount) - 15.59) * 10
+    ) / 10;
+  const readabilityLabel = getReadabilityLabel(fleschEase);
+
+  const readingTime = Math.ceil(wordCount / 200);
+  const speakingTime = Math.ceil(wordCount / 130);
+
+  const uniqueWords = new Set(words.map((w) => w.toLowerCase()));
+  const uniqueWordCount = uniqueWords.size;
+  const lexicalDiversity =
+    wordCount > 0 ? Math.round((uniqueWordCount / wordCount) * 1000) / 10 : 0;
+
+  const avgSentenceLength = Math.round((wordCount / sentenceCount) * 10) / 10;
+
+  let longestSentence = '';
+  let longestSentenceLength = 0;
+  for (const s of sentences) {
+    const sWords = extractWords(s);
+    if (sWords.length > longestSentenceLength) {
+      longestSentenceLength = sWords.length;
+      longestSentence = s.trim();
+    }
+  }
+
+  if (longestSentence.length > 80) {
+    longestSentence = longestSentence.substring(0, 80) + '...';
+  }
+
+  const wordFreq = {};
+  for (const w of words) {
+    const lower = w.toLowerCase();
+    if (!STOP_WORDS.has(lower) && lower.length > 1) {
+      wordFreq[lower] = (wordFreq[lower] || 0) + 1;
+    }
+  }
+
+  const topWords = Object.entries(wordFreq)
+    .sort((a, b) => b[1] - a[1])
+    .slice(0, 10)
+    .map(([word, count]) => ({ word, count }));
+
+  return {
+    wordCount,
+    sentenceCount,
+    paragraphCount,
+    fleschEase,
+    fleschGrade,
+    readabilityLabel,
+    readingTime,
+    speakingTime,
+    uniqueWordCount,
+    lexicalDiversity,
+    avgSentenceLength,
+    longestSentence,
+    longestSentenceLength,
+    topWords,
+  };
+}
+
+module.exports = { analyze };

src/command-palette.js

@@ -1,109 +1,113 @@
 class CommandPalette {
-    constructor() {
-        this.overlay = document.getElementById('command-palette-overlay');
-        this.input = document.getElementById('command-palette-input');
-        this.results = document.getElementById('command-palette-results');
-        this.commands = [];
-        this.selectedIndex = 0;
-        this.filteredCommands = [];
-        this.setupEventListeners();
-    }
+  constructor() {
+    this.overlay = document.getElementById('command-palette-overlay');
+    this.input = document.getElementById('command-palette-input');
+    this.results = document.getElementById('command-palette-results');
+    this.commands = [];
+    this.selectedIndex = 0;
+    this.filteredCommands = [];
+    this.setupEventListeners();
+  }
 
-    register(label, shortcut, action) {
-        this.commands.push({ label, shortcut, action });
-    }
+  register(label, shortcut, action) {
+    this.commands.push({ label, shortcut, action });
+  }
 
-    open() {
-        this.overlay.classList.remove('hidden');
-        this.input.value = '';
-        this.input.focus();
-        this.selectedIndex = 0;
-        this.renderResults('');
-    }
+  open() {
+    this.overlay.classList.remove('hidden');
+    this.input.value = '';
+    this.input.focus();
+    this.selectedIndex = 0;
+    this.renderResults('');
+  }
 
-    close() {
-        this.overlay.classList.add('hidden');
-    }
+  close() {
+    this.overlay.classList.add('hidden');
+  }
 
-    isOpen() {
-        return !this.overlay.classList.contains('hidden');
-    }
+  isOpen() {
+    return !this.overlay.classList.contains('hidden');
+  }
 
-    setupEventListeners() {
-        this.input.addEventListener('input', () => {
-            this.selectedIndex = 0;
-            this.renderResults(this.input.value);
-        });
+  setupEventListeners() {
+    this.input.addEventListener('input', () => {
+      this.selectedIndex = 0;
+      this.renderResults(this.input.value);
+    });
 
-        this.overlay.addEventListener('click', (e) => {
-            if (e.target === this.overlay) this.close();
-        });
+    this.overlay.addEventListener('click', (e) => {
+      if (e.target === this.overlay) this.close();
+    });
 
-        this.input.addEventListener('keydown', (e) => {
-            if (e.key === 'Escape') {
-                e.preventDefault();
-                this.close();
-            } else if (e.key === 'Enter') {
-                e.preventDefault();
-                this.executeSelected();
-            } else if (e.key === 'ArrowDown') {
-                e.preventDefault();
-                this.selectedIndex = Math.min(this.selectedIndex + 1, this.filteredCommands.length - 1);
-                this.updateSelection();
-            } else if (e.key === 'ArrowUp') {
-                e.preventDefault();
-                this.selectedIndex = Math.max(this.selectedIndex - 1, 0);
-                this.updateSelection();
-            }
-        });
-    }
+    this.input.addEventListener('keydown', (e) => {
+      if (e.key === 'Escape') {
+        e.preventDefault();
+        this.close();
+      } else if (e.key === 'Enter') {
+        e.preventDefault();
+        this.executeSelected();
+      } else if (e.key === 'ArrowDown') {
+        e.preventDefault();
+        this.selectedIndex = Math.min(this.selectedIndex + 1, this.filteredCommands.length - 1);
+        this.updateSelection();
+      } else if (e.key === 'ArrowUp') {
+        e.preventDefault();
+        this.selectedIndex = Math.max(this.selectedIndex - 1, 0);
+        this.updateSelection();
+      }
+    });
+  }
 
-    renderResults(query) {
-        this.filteredCommands = query
-            ? this.commands.filter(cmd => cmd.label.toLowerCase().includes(query.toLowerCase()))
-            : [...this.commands];
+  renderResults(query) {
+    this.filteredCommands = query
+      ? this.commands.filter((cmd) => cmd.label.toLowerCase().includes(query.toLowerCase()))
+      : [...this.commands];
 
-        this.results.innerHTML = this.filteredCommands.map((cmd, i) => `
+    this.results.innerHTML = this.filteredCommands
+      .map(
+        (cmd, i) => `
             <div class="command-item ${i === this.selectedIndex ? 'selected' : ''}" data-index="${i}">
                 <span class="command-label">${this.highlightMatch(cmd.label, query)}</span>
                 ${cmd.shortcut ? `<span class="command-shortcut">${cmd.shortcut}</span>` : ''}
             </div>
-        `).join('');
+        `
+      )
+      .join('');
 
-        this.results.querySelectorAll('.command-item').forEach((el) => {
-            el.addEventListener('click', () => {
-                const idx = parseInt(el.dataset.index);
-                this.filteredCommands[idx].action();
-                this.close();
-            });
-            el.addEventListener('mouseenter', () => {
-                this.selectedIndex = parseInt(el.dataset.index);
-                this.updateSelection();
-            });
-        });
-    }
+    this.results.querySelectorAll('.command-item').forEach((el) => {
+      el.addEventListener('click', () => {
+        const idx = parseInt(el.dataset.index);
+        this.filteredCommands[idx].action();
+        this.close();
+      });
+      el.addEventListener('mouseenter', () => {
+        this.selectedIndex = parseInt(el.dataset.index);
+        this.updateSelection();
+      });
+    });
+  }
 
-    highlightMatch(text, query) {
-        if (!query) return text;
-        const regex = new RegExp(`(${query.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')})`, 'gi');
-        return text.replace(regex, '<strong>$1</strong>');
-    }
+  highlightMatch(text, query) {
+    if (!query) return text;
+    const regex = new RegExp(`(${query.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')})`, 'gi');
+    return text.replace(regex, '<strong>$1</strong>');
+  }
 
-    updateSelection() {
-        this.results.querySelectorAll('.command-item').forEach((el, i) => {
-            el.classList.toggle('selected', i === this.selectedIndex);
-        });
-        // Scroll selected into view
-        const selected = this.results.querySelector('.command-item.selected');
-        if (selected) selected.scrollIntoView({ block: 'nearest' });
-    }
+  updateSelection() {
+    this.results.querySelectorAll('.command-item').forEach((el, i) => {
+      el.classList.toggle('selected', i === this.selectedIndex);
+    });
+    // Scroll selected into view
+    const selected = this.results.querySelector('.command-item.selected');
+    if (selected) selected.scrollIntoView({ block: 'nearest' });
+  }
 
-    executeSelected() {
-        if (this.filteredCommands[this.selectedIndex]) {
-            this.filteredCommands[this.selectedIndex].action();
-            this.close();
-        }
+  executeSelected() {
+    if (this.filteredCommands[this.selectedIndex]) {
+      this.filteredCommands[this.selectedIndex].action();
+      this.close();
     }
+  }
 }
 
 module.exports = { CommandPalette };

src/editor/codemirror-setup.js

@@ -12,38 +12,23 @@ const { EditorState } = require('@codemirror/state');
 const { markdown, markdownLanguage } = require('@codemirror/lang-markdown');
 // Language extensions loaded lazily on first use
 let _javascript, _html, _css, _json, _python;
-const {
-  defaultKeymap,
-  history,
-  historyKeymap,
-  indentWithTab,
-} = require('@codemirror/commands');
-const {
-  searchKeymap,
-  highlightSelectionMatches,
-} = require('@codemirror/search');
-const {
-  autocompletion,
-  completionKeymap,
-} = require('@codemirror/autocomplete');
-const {
-  bracketMatching,
-  foldGutter,
-  indentOnInput,
-} = require('@codemirror/language');
+const { defaultKeymap, history, historyKeymap, indentWithTab } = require('@codemirror/commands');
+const { searchKeymap, highlightSelectionMatches } = require('@codemirror/search');
+const { autocompletion, completionKeymap } = require('@codemirror/autocomplete');
+const { bracketMatching, foldGutter, indentOnInput } = require('@codemirror/language');
 const { oneDark } = require('@codemirror/theme-one-dark');
 
 // Custom theme for JetBrains Mono font
 const jetBrainsMonoTheme = EditorView.theme({
   '&': {
-    fontFamily: "'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, 'Courier New', monospace"
+    fontFamily: "'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, 'Courier New', monospace",
   },
   '.cm-content': {
-    fontFamily: 'inherit'
+    fontFamily: 'inherit',
   },
   '.cm-scroller': {
-    fontFamily: 'inherit'
-  }
+    fontFamily: 'inherit',
+  },
 });
 
 /**
@@ -59,6 +44,18 @@ const jetBrainsMonoTheme = EditorView.theme({
  * @returns {EditorView} the created editor view
  */
 function createEditor(parentElement, options = {}) {
+  console.log(
+    '[createEditor] Called with parentElement:',
+    parentElement?.id,
+    'dimensions:',
+    parentElement?.clientWidth,
+    'x',
+    parentElement?.clientHeight
+  );
+  if (!parentElement) {
+    console.error('[createEditor] ERROR: parentElement is null or undefined!');
+    return null;
+  }
   const {
     content = '',
     onChange = () => {},
@@ -120,11 +117,26 @@ function createEditor(parentElement, options = {}) {
  */
 function getLanguageExtension(lang) {
   const loaders = {
-    javascript: () => { if (!_javascript) _javascript = require('@codemirror/lang-javascript').javascript; return _javascript(); },
-    html: () => { if (!_html) _html = require('@codemirror/lang-html').html; return _html(); },
-    css: () => { if (!_css) _css = require('@codemirror/lang-css').css; return _css(); },
-    json: () => { if (!_json) _json = require('@codemirror/lang-json').json; return _json(); },
-    python: () => { if (!_python) _python = require('@codemirror/lang-python').python; return _python(); },
+    javascript: () => {
+      if (!_javascript) _javascript = require('@codemirror/lang-javascript').javascript;
+      return _javascript();
+    },
+    html: () => {
+      if (!_html) _html = require('@codemirror/lang-html').html;
+      return _html();
+    },
+    css: () => {
+      if (!_css) _css = require('@codemirror/lang-css').css;
+      return _css();
+    },
+    json: () => {
+      if (!_json) _json = require('@codemirror/lang-json').json;
+      return _json();
+    },
+    python: () => {
+      if (!_python) _python = require('@codemirror/lang-python').python;
+      return _python();
+    },
     markdown: () => markdown({ base: markdownLanguage }),
   };
   loaders.js = loaders.javascript;

src/fonts.css

@@ -2,74 +2,74 @@
 
 /* Inter Font Family */
 @font-face {
-    font-family: 'Inter';
-    font-style: normal;
-    font-weight: 300;
-    font-display: swap;
-    src: url('../assets/fonts/Inter-Light.woff2') format('woff2');
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 300;
+  font-display: swap;
+  src: url('../assets/fonts/Inter-Light.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'Inter';
-    font-style: normal;
-    font-weight: 400;
-    font-display: swap;
-    src: url('../assets/fonts/Inter-Regular.woff2') format('woff2');
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url('../assets/fonts/Inter-Regular.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'Inter';
-    font-style: normal;
-    font-weight: 500;
-    font-display: swap;
-    src: url('../assets/fonts/Inter-Medium.woff2') format('woff2');
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 500;
+  font-display: swap;
+  src: url('../assets/fonts/Inter-Medium.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'Inter';
-    font-style: normal;
-    font-weight: 600;
-    font-display: swap;
-    src: url('../assets/fonts/Inter-SemiBold.woff2') format('woff2');
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: url('../assets/fonts/Inter-SemiBold.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'Inter';
-    font-style: normal;
-    font-weight: 700;
-    font-display: swap;
-    src: url('../assets/fonts/Inter-Bold.woff2') format('woff2');
+  font-family: 'Inter';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: url('../assets/fonts/Inter-Bold.woff2') format('woff2');
 }
 
 /* JetBrains Mono Font Family - For code, markdown editor, and ASCII art */
 @font-face {
-    font-family: 'JetBrains Mono';
-    font-style: normal;
-    font-weight: 400;
-    font-display: swap;
-    src: url('../assets/fonts/JetBrainsMono-Regular.woff2') format('woff2');
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url('../assets/fonts/JetBrainsMono-Regular.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'JetBrains Mono';
-    font-style: normal;
-    font-weight: 500;
-    font-display: swap;
-    src: url('../assets/fonts/JetBrainsMono-Medium.woff2') format('woff2');
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 500;
+  font-display: swap;
+  src: url('../assets/fonts/JetBrainsMono-Medium.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'JetBrains Mono';
-    font-style: normal;
-    font-weight: 600;
-    font-display: swap;
-    src: url('../assets/fonts/JetBrainsMono-SemiBold.woff2') format('woff2');
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 600;
+  font-display: swap;
+  src: url('../assets/fonts/JetBrainsMono-SemiBold.woff2') format('woff2');
 }
 
 @font-face {
-    font-family: 'JetBrains Mono';
-    font-style: normal;
-    font-weight: 700;
-    font-display: swap;
-    src: url('../assets/fonts/JetBrainsMono-Bold.woff2') format('woff2');
+  font-family: 'JetBrains Mono';
+  font-style: normal;
+  font-weight: 700;
+  font-display: swap;
+  src: url('../assets/fonts/JetBrainsMono-Bold.woff2') format('woff2');
 }

src/main/GitOperations.js

@@ -0,0 +1,44 @@
+const simpleGit = require('simple-git');
+
+function getGitInstance(dir) {
+  return simpleGit(dir);
+}
+
+async function getStatus(dir) {
+  try {
+    const git = getGitInstance(dir);
+    return await git.status();
+  } catch {
+    return { error: 'Not a git repository' };
+  }
+}
+
+async function stage(dir, files) {
+  try {
+    const git = getGitInstance(dir);
+    await git.add(files);
+    return await git.status();
+  } catch (err) {
+    return { error: err.message };
+  }
+}
+
+async function commit(dir, message) {
+  try {
+    const git = getGitInstance(dir);
+    return await git.commit(message);
+  } catch (err) {
+    return { error: err.message };
+  }
+}
+
+async function log(dir, maxCount = 20) {
+  try {
+    const git = getGitInstance(dir);
+    return await git.log({ maxCount });
+  } catch (err) {
+    return { error: err.message };
+  }
+}
+
+module.exports = { getStatus, stage, commit, log };

src/main/PDFOperations.js

@@ -0,0 +1,452 @@
+const fs = require('fs');
+const path = require('path');
+const { PDFDocument, rgb, degrees, StandardFonts } = require('pdf-lib');
+
+function parsePageRanges(rangeString, totalPages) {
+  const pages = [];
+  const ranges = rangeString.split(',').map((r) => r.trim());
+
+  for (const range of ranges) {
+    if (range.includes('-')) {
+      const [start, end] = range.split('-').map((n) => parseInt(n.trim()));
+      for (let i = start; i <= end && i <= totalPages; i++) {
+        if (i > 0 && !pages.includes(i - 1)) {
+          pages.push(i - 1);
+        }
+      }
+    } else {
+      const page = parseInt(range);
+      if (page > 0 && page <= totalPages && !pages.includes(page - 1)) {
+        pages.push(page - 1);
+      }
+    }
+  }
+
+  return pages.sort((a, b) => a - b);
+}
+
+function hexToRgb(hex) {
+  const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
+  return result
+    ? {
+        r: parseInt(result[1], 16) / 255,
+        g: parseInt(result[2], 16) / 255,
+        b: parseInt(result[3], 16) / 255,
+      }
+    : { r: 0, g: 0, b: 0 };
+}
+
+async function pdfMerge(data) {
+  try {
+    const mergedPdf = await PDFDocument.create();
+
+    for (const filePath of data.inputFiles) {
+      const pdfBytes = fs.readFileSync(filePath);
+      const pdf = await PDFDocument.load(pdfBytes);
+      const copiedPages = await mergedPdf.copyPages(pdf, pdf.getPageIndices());
+      copiedPages.forEach((page) => mergedPdf.addPage(page));
+    }
+
+    const pdfBytes = await mergedPdf.save();
+    fs.writeFileSync(data.outputPath, pdfBytes);
+
+    return { success: true, message: `Successfully merged ${data.inputFiles.length} PDFs` };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfSplit(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+    const totalPages = pdf.getPageCount();
+
+    const splits = [];
+
+    if (data.splitMode === 'pages') {
+      const ranges = data.pageRanges.split(',').map((r) => r.trim());
+      for (let i = 0; i < ranges.length; i++) {
+        const range = ranges[i];
+        const pages = [];
+
+        if (range.includes('-')) {
+          const [start, end] = range.split('-').map((n) => parseInt(n.trim()));
+          for (let p = start; p <= end && p <= totalPages; p++) {
+            pages.push(p - 1);
+          }
+        } else {
+          const page = parseInt(range);
+          if (page > 0 && page <= totalPages) {
+            pages.push(page - 1);
+          }
+        }
+
+        if (pages.length > 0) {
+          splits.push({ pages, name: `part_${i + 1}` });
+        }
+      }
+    } else if (data.splitMode === 'interval') {
+      const interval = data.interval;
+      for (let i = 0; i < totalPages; i += interval) {
+        const pages = [];
+        for (let j = i; j < i + interval && j < totalPages; j++) {
+          pages.push(j);
+        }
+        splits.push({ pages, name: `part_${Math.floor(i / interval) + 1}` });
+      }
+    } else if (data.splitMode === 'size') {
+      const chunkSize = Math.max(1, Math.floor(totalPages / 5));
+      for (let i = 0; i < totalPages; i += chunkSize) {
+        const pages = [];
+        for (let j = i; j < i + chunkSize && j < totalPages; j++) {
+          pages.push(j);
+        }
+        splits.push({ pages, name: `part_${Math.floor(i / chunkSize) + 1}` });
+      }
+    }
+
+    const baseName = path.basename(data.inputPath, '.pdf');
+    for (const split of splits) {
+      const newPdf = await PDFDocument.create();
+      const copiedPages = await newPdf.copyPages(pdf, split.pages);
+      copiedPages.forEach((page) => newPdf.addPage(page));
+
+      const outputPath = path.join(data.outputFolder, `${baseName}_${split.name}.pdf`);
+      const newPdfBytes = await newPdf.save();
+      fs.writeFileSync(outputPath, newPdfBytes);
+    }
+
+    return { success: true, message: `Successfully split PDF into ${splits.length} files` };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfCompress(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+
+    const compressedPdfBytes = await pdf.save({
+      useObjectStreams: true,
+      addDefaultPage: false,
+      objectsPerTick: 50,
+    });
+
+    fs.writeFileSync(data.outputPath, compressedPdfBytes);
+
+    const originalSize = fs.statSync(data.inputPath).size;
+    const compressedSize = fs.statSync(data.outputPath).size;
+    const savings = (((originalSize - compressedSize) / originalSize) * 100).toFixed(1);
+
+    return {
+      success: true,
+      message: `PDF compressed. Size reduced by ${savings}% (${(originalSize / 1024).toFixed(1)}KB → ${(compressedSize / 1024).toFixed(1)}KB)`,
+    };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfRotate(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+    const totalPages = pdf.getPageCount();
+
+    let pagesToRotate = [];
+    if (data.pages && data.pages.trim()) {
+      pagesToRotate = parsePageRanges(data.pages, totalPages);
+    } else {
+      pagesToRotate = Array.from({ length: totalPages }, (_, i) => i);
+    }
+
+    pagesToRotate.forEach((pageIndex) => {
+      const page = pdf.getPage(pageIndex);
+      page.setRotation(degrees(data.angle));
+    });
+
+    const rotatedPdfBytes = await pdf.save();
+    fs.writeFileSync(data.outputPath, rotatedPdfBytes);
+
+    return {
+      success: true,
+      message: `Successfully rotated ${pagesToRotate.length} page(s) by ${data.angle}\u00B0`,
+    };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfDeletePages(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+    const totalPages = pdf.getPageCount();
+
+    const pagesToDelete = parsePageRanges(data.pages, totalPages);
+
+    pagesToDelete
+      .sort((a, b) => b - a)
+      .forEach((pageIndex) => {
+        pdf.removePage(pageIndex);
+      });
+
+    const newPdfBytes = await pdf.save();
+    fs.writeFileSync(data.outputPath, newPdfBytes);
+
+    return {
+      success: true,
+      message: `Successfully deleted ${pagesToDelete.length} page(s). New PDF has ${totalPages - pagesToDelete.length} pages`,
+    };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfReorder(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+    const totalPages = pdf.getPageCount();
+
+    const newOrder = data.newOrder.split(',').map((n) => parseInt(n.trim()) - 1);
+
+    if (newOrder.length !== totalPages) {
+      return { success: false, error: `New order must include all ${totalPages} pages` };
+    }
+
+    const newPdf = await PDFDocument.create();
+    const copiedPages = await newPdf.copyPages(pdf, newOrder);
+    copiedPages.forEach((page) => newPdf.addPage(page));
+
+    const reorderedPdfBytes = await newPdf.save();
+    fs.writeFileSync(data.outputPath, reorderedPdfBytes);
+
+    return { success: true, message: 'Successfully reordered PDF pages' };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfWatermark(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+    const totalPages = pdf.getPageCount();
+
+    let pagesToWatermark = [];
+    if (data.pages === 'all') {
+      pagesToWatermark = Array.from({ length: totalPages }, (_, i) => i);
+    } else if (data.pages === 'custom' && data.customPages) {
+      pagesToWatermark = parsePageRanges(data.customPages, totalPages);
+    }
+
+    const font = await pdf.embedFont(StandardFonts.Helvetica);
+    const color = hexToRgb(data.color);
+
+    for (const pageIndex of pagesToWatermark) {
+      const page = pdf.getPage(pageIndex);
+      const { width, height } = page.getSize();
+
+      let x,
+        y,
+        rotation = 0;
+
+      switch (data.position) {
+        case 'center':
+          x = width / 2;
+          y = height / 2;
+          break;
+        case 'diagonal':
+          x = width / 2;
+          y = height / 2;
+          rotation = 45;
+          break;
+        case 'top-left':
+          x = 50;
+          y = height - 50;
+          break;
+        case 'top-center':
+          x = width / 2;
+          y = height - 50;
+          break;
+        case 'top-right':
+          x = width - 50;
+          y = height - 50;
+          break;
+        case 'bottom-left':
+          x = 50;
+          y = 50;
+          break;
+        case 'bottom-center':
+          x = width / 2;
+          y = 50;
+          break;
+        case 'bottom-right':
+          x = width - 50;
+          y = 50;
+          break;
+        default:
+          x = width / 2;
+          y = height / 2;
+      }
+
+      page.drawText(data.text, {
+        x,
+        y,
+        size: data.fontSize,
+        font,
+        color: rgb(color.r, color.g, color.b),
+        opacity: data.opacity,
+        rotate: degrees(rotation),
+      });
+    }
+
+    const watermarkedPdfBytes = await pdf.save();
+    fs.writeFileSync(data.outputPath, watermarkedPdfBytes);
+
+    return {
+      success: true,
+      message: `Successfully added watermark to ${pagesToWatermark.length} page(s)`,
+    };
+  } catch (error) {
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfEncrypt(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes);
+
+    const encryptedPdfBytes = await pdf.save({
+      userPassword: data.userPassword,
+      ownerPassword: data.ownerPassword || data.userPassword,
+      permissions: {
+        printing: data.permissions.printing ? 'highResolution' : 'lowResolution',
+        modifying: data.permissions.modifying,
+        copying: data.permissions.copying,
+        annotating: data.permissions.annotating,
+        fillingForms: data.permissions.fillingForms,
+        contentAccessibility: data.permissions.contentAccessibility,
+        documentAssembly: data.permissions.documentAssembly,
+      },
+    });
+
+    fs.writeFileSync(data.outputPath, encryptedPdfBytes);
+
+    return { success: true, message: 'Successfully added password protection to PDF' };
+  } catch (error) {
+    if (error.message.includes('encrypt') || error.message.includes('password')) {
+      return {
+        success: false,
+        error:
+          'PDF encryption requires pdf-lib with encryption support. This feature may not be available in the current version.',
+      };
+    }
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfDecrypt(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const pdf = await PDFDocument.load(pdfBytes, { password: data.password });
+
+    const decryptedPdfBytes = await pdf.save();
+    fs.writeFileSync(data.outputPath, decryptedPdfBytes);
+
+    return { success: true, message: 'Successfully removed password protection from PDF' };
+  } catch (error) {
+    if (error.message.includes('password') || error.message.includes('encrypted')) {
+      return { success: false, error: 'Incorrect password or PDF is not encrypted' };
+    }
+    return { success: false, error: error.message };
+  }
+}
+
+async function pdfSetPermissions(data) {
+  try {
+    const pdfBytes = fs.readFileSync(data.inputPath);
+    const loadOptions = data.currentPassword ? { password: data.currentPassword } : {};
+    const pdf = await PDFDocument.load(pdfBytes, loadOptions);
+
+    const newPdfBytes = await pdf.save({
+      ownerPassword: data.ownerPassword,
+      permissions: {
+        printing: data.permissions.printing ? 'highResolution' : 'lowResolution',
+        modifying: data.permissions.modifying,
+        copying: data.permissions.copying,
+        annotating: data.permissions.annotating,
+        fillingForms: data.permissions.fillingForms,
+        contentAccessibility: data.permissions.contentAccessibility,
+        documentAssembly: data.permissions.documentAssembly,
+      },
+    });
+
+    fs.writeFileSync(data.outputPath, newPdfBytes);
+
+    return { success: true, message: 'Successfully updated PDF permissions' };
+  } catch (error) {
+    if (error.message.includes('encrypt') || error.message.includes('permission')) {
+      return {
+        success: false,
+        error:
+          'PDF permissions require pdf-lib with encryption support. This feature may not be available in the current version.',
+      };
+    }
+    return { success: false, error: error.message };
+  }
+}
+
+function executeOperation(operation, data) {
+  switch (operation) {
+    case 'merge':
+      return pdfMerge(data);
+    case 'split':
+      return pdfSplit(data);
+    case 'compress':
+      return pdfCompress(data);
+    case 'rotate':
+      return pdfRotate(data);
+    case 'delete':
+      return pdfDeletePages(data);
+    case 'reorder':
+      return pdfReorder(data);
+    case 'watermark':
+      return pdfWatermark(data);
+    case 'encrypt':
+      return pdfEncrypt(data);
+    case 'decrypt':
+      return pdfDecrypt(data);
+    case 'permissions':
+      return pdfSetPermissions(data);
+    default:
+      return Promise.resolve({ success: false, error: `Unknown operation: ${operation}` });
+  }
+}
+
+async function getPageCount(filePath) {
+  const pdfBytes = fs.readFileSync(filePath);
+  const pdf = await PDFDocument.load(pdfBytes);
+  return pdf.getPageCount();
+}
+
+module.exports = {
+  parsePageRanges,
+  hexToRgb,
+  pdfMerge,
+  pdfSplit,
+  pdfCompress,
+  pdfRotate,
+  pdfDeletePages,
+  pdfReorder,
+  pdfWatermark,
+  pdfEncrypt,
+  pdfDecrypt,
+  pdfSetPermissions,
+  executeOperation,
+  getPageCount,
+};

src/plugins/built-in/_sample/index.js

@@ -0,0 +1,12 @@
+const { PluginAPI } = require('../../plugin-api');
+
+class SamplePlugin extends PluginAPI {
+  init(context) {
+    this.context = context;
+    context.commands.register('hello', 'Sample: Hello World', () => {
+      console.log('[SamplePlugin] Hello from the plugin system!');
+    });
+  }
+}
+
+module.exports = { Plugin: SamplePlugin };

src/plugins/built-in/_sample/manifest.json

@@ -0,0 +1,11 @@
+{
+  "id": "_sample",
+  "name": "Sample Plugin",
+  "version": "1.0.0",
+  "description": "Demonstrates the plugin system. Safe to delete.",
+  "icon": "puzzle",
+  "extensionPoints": {
+    "commands": [{ "id": "hello", "label": "Sample: Hello World", "shortcut": "" }]
+  },
+  "settings": []
+}

src/plugins/built-in/writing-studio/goal-tracker.js

@@ -0,0 +1,87 @@
+const HISTORY_KEY = 'plugins.writing-studio.history';
+
+class GoalTracker {
+  /**
+   * @param {object} store - { get(key), set(key, value) } settings backend
+   */
+  constructor(store) {
+    this.store = store;
+  }
+
+  _getHistory() {
+    const raw = this.store.get(HISTORY_KEY);
+    return raw ? JSON.parse(raw) : {};
+  }
+
+  _setHistory(history) {
+    this.store.set(HISTORY_KEY, JSON.stringify(history));
+  }
+
+  _setHistoryDay(dateStr, data) {
+    const history = this._getHistory();
+    history[dateStr] = data;
+    this._setHistory(history);
+  }
+
+  addWords(count) {
+    const today = new Date().toISOString().split('T')[0];
+    const history = this._getHistory();
+    if (!history[today]) {
+      history[today] = { words: 0, sessions: 0 };
+    }
+    history[today].words += count;
+    history[today].sessions += 1;
+    this._setHistory(history);
+  }
+
+  getDailyProgress(goal) {
+    const today = new Date().toISOString().split('T')[0];
+    const history = this._getHistory();
+    const written = history[today]?.words || 0;
+    return { written, goal, pct: goal > 0 ? Math.min(100, Math.round((written / goal) * 100)) : 0 };
+  }
+
+  getStreak(goal) {
+    const history = this._getHistory();
+    let streak = 0;
+    const d = new Date();
+    for (let i = 0; i < 365; i++) {
+      const key = d.toISOString().split('T')[0];
+      const day = history[key];
+      if (day && day.words >= goal) {
+        streak++;
+        d.setDate(d.getDate() - 1);
+      } else {
+        break;
+      }
+    }
+    return streak;
+  }
+
+  getLast30Days() {
+    const history = this._getHistory();
+    const days = [];
+    const d = new Date();
+    for (let i = 0; i < 30; i++) {
+      const key = d.toISOString().split('T')[0];
+      const day = history[key];
+      days.push({ date: key, words: day?.words || 0 });
+      d.setDate(d.getDate() - 1);
+    }
+    return days.reverse();
+  }
+
+  getWeeklyTotal() {
+    const history = this._getHistory();
+    let total = 0;
+    const d = new Date();
+    for (let i = 0; i < 7; i++) {
+      const key = d.toISOString().split('T')[0];
+      if (history[key]) total += history[key].words || 0;
+      d.setDate(d.getDate() - 1);
+    }
+    return total;
+  }
+}
+
+module.exports = { GoalTracker };

src/plugins/built-in/writing-studio/index.js

@@ -0,0 +1,132 @@
+const { PluginAPI } = require('../../../plugins/plugin-api');
+const { SprintEngine } = require('./sprint-engine');
+const { GoalTracker } = require('./goal-tracker');
+const { SnapshotManager } = require('./snapshot-manager');
+const { ProjectManager } = require('./project-manager');
+
+class WritingStudioPlugin extends PluginAPI {
+  init(context) {
+    this.context = context;
+
+    this.sprintEngine = new SprintEngine({
+      onEvent: (name, data) => context.events.emit(name, data),
+    });
+    this.goalTracker = new GoalTracker(context.settings);
+    this.snapshotManager = new SnapshotManager(context.settings);
+    this.projectManager = new ProjectManager({
+      readFile: (p) => context.ipc.invoke('read-file', p),
+      writeFile: (p, c) => context.ipc.invoke('write-file', p, c),
+      fileExists: (p) => context.ipc.invoke('path-exists', p),
+      listDir: (p) => context.ipc.invoke('list-directory', p),
+    });
+
+    this._engines = {
+      sprint: this.sprintEngine,
+      goals: this.goalTracker,
+      snapshots: this.snapshotManager,
+      projects: this.projectManager,
+    };
+
+    this._registerCommands(context);
+    this._registerStatusBar(context);
+  }
+
+  _registerCommands(context) {
+    const { sprintEngine, snapshotManager, goalTracker } = this;
+
+    context.commands.register(
+      'start-sprint',
+      'Studio: Start Sprint',
+      () => {
+        const duration = context.settings.get('sprintDuration') || 25;
+        const content = context.editor.getContent() || '';
+        const words = content.split(/\s+/).filter(Boolean).length;
+        sprintEngine.start(duration, words);
+      },
+      'Ctrl+Alt+S'
+    );
+
+    context.commands.register(
+      'stop-sprint',
+      'Studio: Stop Sprint',
+      () => {
+        if (!sprintEngine.isActive()) return;
+        const content = context.editor.getContent() || '';
+        const words = content.split(/\s+/).filter(Boolean).length;
+        const result = sprintEngine.stop(words);
+        goalTracker.addWords(result.wordDelta);
+        context.events.emit('sprint:stopped', result);
+      },
+      'Ctrl+Alt+Shift+S'
+    );
+
+    context.commands.register(
+      'take-snapshot',
+      'Studio: Take Snapshot',
+      () => {
+        const content = context.editor.getContent() || '';
+        snapshotManager.create(content, 'manual');
+        context.events.emit('snapshot:created', {});
+      },
+      'Ctrl+Alt+N'
+    );
+
+    context.commands.register(
+      'restore-last-snapshot',
+      'Studio: Restore Last Snapshot',
+      () => {
+        const snaps = snapshotManager.list();
+        if (snaps.length === 0) return;
+        const content = snapshotManager.restore(snaps[0].id);
+        context.editor.insertAtCursor(content);
+      },
+      'Ctrl+Alt+Z'
+    );
+
+    context.commands.register('new-project', 'Studio: New Project', () => {
+      context.events.emit('studio:new-project', {});
+    });
+
+    context.commands.register(
+      'compile-manuscript',
+      'Studio: Compile Manuscript',
+      () => {
+        context.events.emit('studio:compile', {});
+      },
+      'Ctrl+Alt+E'
+    );
+
+    context.commands.register(
+      'proofread-document',
+      'Studio: Proofread Document',
+      () => {
+        if (context.events.hasHandler('ai:analyze')) {
+          const content = context.editor.getContent() || '';
+          context.events.emit('ai:analyze', { text: content, type: 'grammar' });
+        }
+      },
+      'Ctrl+Alt+G'
+    );
+  }
+
+  _registerStatusBar(context) {
+    context.statusBar.registerIndicator('word-goal', {
+      text: '0/1000',
+      tooltip: 'Daily word goal progress',
+    });
+    context.statusBar.registerIndicator('sprint-timer', {
+      text: '',
+      tooltip: 'Writing sprint timer',
+    });
+  }
+
+  deactivate() {
+    if (this._sprintInterval) clearInterval(this._sprintInterval);
+  }
+
+  getEngines() {
+    return this._engines;
+  }
+}
+
+module.exports = { Plugin: WritingStudioPlugin };

src/plugins/built-in/writing-studio/manifest.json

@@ -0,0 +1,48 @@
+{
+  "id": "writing-studio",
+  "name": "Writing Studio",
+  "version": "1.0.0",
+  "description": "Manuscript management, writing sprints, goal tracking, snapshots, and smart proofreading",
+  "icon": "pen-tool",
+  "extensionPoints": {
+    "sidebar": [
+      { "id": "manuscript", "title": "Manuscript", "order": 30 },
+      { "id": "goals", "title": "Goals", "order": 31 },
+      { "id": "snapshots", "title": "Snapshots", "order": 32 },
+      { "id": "proofread", "title": "Proofread", "order": 33 }
+    ],
+    "commands": [
+      { "id": "start-sprint", "label": "Studio: Start Sprint", "shortcut": "Ctrl+Alt+S" },
+      { "id": "stop-sprint", "label": "Studio: Stop Sprint", "shortcut": "Ctrl+Alt+Shift+S" },
+      { "id": "take-snapshot", "label": "Studio: Take Snapshot", "shortcut": "Ctrl+Alt+N" },
+      {
+        "id": "restore-last-snapshot",
+        "label": "Studio: Restore Last Snapshot",
+        "shortcut": "Ctrl+Alt+Z"
+      },
+      { "id": "new-project", "label": "Studio: New Project", "shortcut": "" },
+      {
+        "id": "compile-manuscript",
+        "label": "Studio: Compile Manuscript",
+        "shortcut": "Ctrl+Alt+E"
+      },
+      {
+        "id": "proofread-document",
+        "label": "Studio: Proofread Document",
+        "shortcut": "Ctrl+Alt+G"
+      }
+    ],
+    "statusBar": { "indicators": ["sprint-timer", "word-goal"] }
+  },
+  "settings": [
+    { "key": "dailyGoal", "type": "number", "default": 1000, "label": "Daily word goal" },
+    { "key": "sprintDuration", "type": "number", "default": 25, "label": "Sprint duration (min)" },
+    {
+      "key": "autoSnapshotInterval",
+      "type": "number",
+      "default": 0,
+      "label": "Auto-snapshot interval (min, 0=off)"
+    },
+    { "key": "maxSnapshots", "type": "number", "default": 50, "label": "Max snapshots to keep" }
+  ]
+}

src/plugins/built-in/writing-studio/panels/goals-panel.js

@@ -0,0 +1,100 @@
+function renderGoalsPanel(container, { engines, settings }) {
+  const dailyGoal = settings.get('dailyGoal') || 1000;
+  const progress = engines.goals.getDailyProgress(dailyGoal);
+  const streak = engines.goals.getStreak(dailyGoal);
+  const weekly = engines.goals.getWeeklyTotal();
+  const last30 = engines.goals.getLast30Days();
+
+  container.replaceChildren();
+
+  const panel = document.createElement('div');
+  panel.className = 'ws-panel';
+
+  // Daily progress section
+  const section1 = document.createElement('div');
+  section1.className = 'ws-section';
+  const heading1 = document.createElement('h3');
+  heading1.className = 'ws-heading';
+  heading1.textContent = 'Daily Progress';
+  section1.appendChild(heading1);
+
+  const bar = document.createElement('div');
+  bar.className = 'ws-progress-bar';
+  const fill = document.createElement('div');
+  fill.className = 'ws-progress-fill';
+  fill.style.width = progress.pct + '%';
+  bar.appendChild(fill);
+  section1.appendChild(bar);
+
+  const row = document.createElement('div');
+  row.className = 'ws-stat-row';
+  const label = document.createElement('span');
+  label.textContent =
+    progress.written.toLocaleString() + ' / ' + dailyGoal.toLocaleString() + ' words';
+  const pct = document.createElement('span');
+  pct.className = 'ws-pct';
+  pct.textContent = progress.pct + '%';
+  row.appendChild(label);
+  row.appendChild(pct);
+  section1.appendChild(row);
+  panel.appendChild(section1);
+
+  // Stats cards
+  const section2 = document.createElement('div');
+  section2.className = 'ws-section';
+  const grid = document.createElement('div');
+  grid.className = 'ws-stat-grid';
+
+  const streakCard = document.createElement('div');
+  streakCard.className = 'ws-stat-card';
+  const streakVal = document.createElement('span');
+  streakVal.className = 'ws-stat-value';
+  streakVal.textContent = String(streak);
+  const streakLbl = document.createElement('span');
+  streakLbl.className = 'ws-stat-label';
+  streakLbl.textContent = 'Day Streak';
+  streakCard.appendChild(streakVal);
+  streakCard.appendChild(streakLbl);
+
+  const weekCard = document.createElement('div');
+  weekCard.className = 'ws-stat-card';
+  const weekVal = document.createElement('span');
+  weekVal.className = 'ws-stat-value';
+  weekVal.textContent = weekly.toLocaleString();
+  const weekLbl = document.createElement('span');
+  weekLbl.className = 'ws-stat-label';
+  weekLbl.textContent = 'This Week';
+  weekCard.appendChild(weekVal);
+  weekCard.appendChild(weekLbl);
+
+  grid.appendChild(streakCard);
+  grid.appendChild(weekCard);
+  section2.appendChild(grid);
+  panel.appendChild(section2);
+
+  // 30-day chart
+  const section3 = document.createElement('div');
+  section3.className = 'ws-section';
+  const heading3 = document.createElement('h3');
+  heading3.className = 'ws-heading';
+  heading3.textContent = 'Last 30 Days';
+  section3.appendChild(heading3);
+
+  const chart = document.createElement('div');
+  chart.className = 'ws-chart';
+  const maxWords = Math.max(...last30.map((d) => d.words), 1);
+  for (const day of last30) {
+    const barEl = document.createElement('div');
+    const height = Math.max(2, (day.words / maxWords) * 60);
+    barEl.className = 'ws-bar' + (day.words >= dailyGoal ? ' ws-bar-met' : '');
+    barEl.style.height = height + 'px';
+    barEl.title = day.date + ': ' + day.words + ' words';
+    chart.appendChild(barEl);
+  }
+  section3.appendChild(chart);
+  panel.appendChild(section3);
+
+  container.appendChild(panel);
+}
+
+module.exports = { renderGoalsPanel };

src/plugins/built-in/writing-studio/panels/manuscript-panel.js

@@ -0,0 +1,125 @@
+function renderManuscriptPanel(container, { engines, editor, settings }) {
+  const projectDir = settings.get('projectDir');
+
+  container.replaceChildren();
+  const panel = document.createElement('div');
+  panel.className = 'ws-panel';
+
+  if (!projectDir) {
+    const empty = document.createElement('div');
+    empty.className = 'ws-empty';
+    const p = document.createElement('p');
+    p.textContent = 'No manuscript project open';
+    empty.appendChild(p);
+    const btn = document.createElement('button');
+    btn.className = 'ws-btn ws-btn-primary';
+    btn.id = 'ws-new-project';
+    btn.textContent = 'New Project';
+    btn.addEventListener('click', () => {
+      const name = prompt('Project name:');
+      if (!name) return;
+      settings.set('projectDir', name);
+      renderManuscriptPanel(container, { engines, editor, settings });
+    });
+    empty.appendChild(btn);
+    panel.appendChild(empty);
+    container.appendChild(panel);
+    return;
+  }
+
+  const project = engines.projects.loadProject(projectDir);
+  if (!project) {
+    const empty = document.createElement('div');
+    empty.className = 'ws-empty';
+    const p = document.createElement('p');
+    p.textContent = 'Project not found at ' + projectDir;
+    empty.appendChild(p);
+    const btn = document.createElement('button');
+    btn.className = 'ws-btn';
+    btn.id = 'ws-clear-project';
+    btn.textContent = 'Clear Project';
+    btn.addEventListener('click', () => {
+      settings.set('projectDir', null);
+      renderManuscriptPanel(container, { engines, editor, settings });
+    });
+    empty.appendChild(btn);
+    panel.appendChild(empty);
+    container.appendChild(panel);
+    return;
+  }
+
+  const stats = engines.projects.getStats(projectDir);
+
+  // Project title + progress
+  const section1 = document.createElement('div');
+  section1.className = 'ws-section';
+  const heading = document.createElement('h3');
+  heading.className = 'ws-heading';
+  heading.textContent = project.title;
+  section1.appendChild(heading);
+
+  const bar = document.createElement('div');
+  bar.className = 'ws-progress-bar';
+  const fill = document.createElement('div');
+  fill.className = 'ws-progress-fill';
+  fill.style.width = stats.pctComplete + '%';
+  bar.appendChild(fill);
+  section1.appendChild(bar);
+
+  const row = document.createElement('div');
+  row.className = 'ws-stat-row';
+  const label = document.createElement('span');
+  label.textContent =
+    stats.totalWords.toLocaleString() + ' / ' + stats.targetWords.toLocaleString() + ' words';
+  const pct = document.createElement('span');
+  pct.className = 'ws-pct';
+  pct.textContent = stats.pctComplete + '%';
+  row.appendChild(label);
+  row.appendChild(pct);
+  section1.appendChild(row);
+  panel.appendChild(section1);
+
+  // Chapters list
+  const section2 = document.createElement('div');
+  section2.className = 'ws-section';
+  const heading2 = document.createElement('h3');
+  heading2.className = 'ws-heading';
+  heading2.textContent = 'Chapters (' + project.chapters.length + ')';
+  section2.appendChild(heading2);
+
+  const chList = document.createElement('div');
+  chList.className = 'ws-chapter-list';
+  for (const ch of project.chapters) {
+    const item = document.createElement('div');
+    item.className = 'ws-chapter-item';
+    const title = document.createElement('span');
+    title.className = 'ws-chapter-title';
+    title.textContent = ch.title || ch.file;
+    const status = document.createElement('span');
+    status.className = 'ws-chapter-status ws-status-' + (ch.status || 'draft');
+    status.textContent = ch.status || 'draft';
+    item.appendChild(title);
+    item.appendChild(status);
+    chList.appendChild(item);
+  }
+  section2.appendChild(chList);
+  panel.appendChild(section2);
+
+  // Compile button
+  const section3 = document.createElement('div');
+  section3.className = 'ws-section';
+  const compileBtn = document.createElement('button');
+  compileBtn.className = 'ws-btn ws-btn-primary';
+  compileBtn.id = 'ws-compile';
+  compileBtn.textContent = 'Compile Manuscript';
+  compileBtn.addEventListener('click', () => {
+    const compiled = engines.projects.compileManuscript(projectDir);
+    editor.insertAtCursor(compiled);
+  });
+  section3.appendChild(compileBtn);
+  panel.appendChild(section3);
+
+  container.appendChild(panel);
+}
+
+module.exports = { renderManuscriptPanel };

src/plugins/built-in/writing-studio/panels/proofread-panel.js

@@ -0,0 +1,100 @@
+function renderProofreadPanel(container, { events, editor }) {
+  const hasAI = events.hasHandler('ai:analyze');
+
+  container.replaceChildren();
+
+  const panel = document.createElement('div');
+  panel.className = 'ws-panel';
+
+  const section = document.createElement('div');
+  section.className = 'ws-section';
+
+  const btn = document.createElement('button');
+  btn.className = 'ws-btn ws-btn-primary';
+  btn.id = 'ws-proofread';
+  btn.textContent = hasAI ? 'Check Document' : 'AI Plugin Required';
+  btn.disabled = !hasAI;
+  section.appendChild(btn);
+
+  if (!hasAI) {
+    const note = document.createElement('p');
+    note.className = 'ws-muted';
+    note.textContent = 'Install the AI Assistant plugin to enable proofreading.';
+    section.appendChild(note);
+  }
+  panel.appendChild(section);
+
+  const issuesList = document.createElement('div');
+  issuesList.className = 'ws-issues-list';
+  issuesList.id = 'ws-issues';
+  panel.appendChild(issuesList);
+
+  container.appendChild(panel);
+
+  if (!hasAI) return;
+
+  container.querySelector('#ws-proofread').addEventListener('click', () => {
+    const content = editor.getContent() || '';
+    events.emit('ai:analyze', {
+      text: content,
+      type: 'grammar',
+      callback: (result) => {
+        if (result && result.issues) {
+          renderIssues(issuesList, result.issues);
+        }
+      },
+    });
+  });
+}
+
+function renderIssues(container, issues) {
+  container.replaceChildren();
+  if (!issues || issues.length === 0) {
+    const p = document.createElement('p');
+    p.className = 'ws-muted';
+    p.textContent = 'No issues found.';
+    container.appendChild(p);
+    return;
+  }
+  for (let i = 0; i < issues.length; i++) {
+    const issue = issues[i];
+    const item = document.createElement('div');
+    item.className = 'ws-issue-item';
+
+    const type = document.createElement('div');
+    type.className = 'ws-issue-type';
+    type.textContent = (issue.type || 'grammar').toUpperCase();
+    item.appendChild(type);
+
+    const text = document.createElement('div');
+    text.className = 'ws-issue-text';
+    text.textContent = issue.message || issue.text || '';
+    item.appendChild(text);
+
+    if (issue.suggestion) {
+      const sug = document.createElement('div');
+      sug.className = 'ws-issue-suggestion';
+      sug.textContent = 'Suggestion: ' + issue.suggestion;
+      item.appendChild(sug);
+    }
+
+    const actions = document.createElement('div');
+    actions.className = 'ws-issue-actions';
+    for (const [, label] of [
+      ['accept', 'Accept'],
+      ['dismiss', 'Dismiss'],
+    ]) {
+      const actionBtn = document.createElement('button');
+      actionBtn.className = 'ws-btn ws-btn-sm';
+      actionBtn.textContent = label;
+      actionBtn.addEventListener('click', () => {
+        item.remove();
+      });
+      actions.appendChild(actionBtn);
+    }
+    item.appendChild(actions);
+    container.appendChild(item);
+  }
+}
+
+module.exports = { renderProofreadPanel };

src/plugins/built-in/writing-studio/panels/snapshots-panel.js

@@ -0,0 +1,85 @@
+function renderSnapshotsPanel(container, { engines, editor }) {
+  const snapshots = engines.snapshots.list();
+
+  container.replaceChildren();
+
+  const panel = document.createElement('div');
+  panel.className = 'ws-panel';
+
+  // Header with take snapshot button
+  const section = document.createElement('div');
+  section.className = 'ws-section';
+  const btn = document.createElement('button');
+  btn.className = 'ws-btn ws-btn-primary';
+  btn.id = 'ws-take-snapshot';
+  btn.textContent = 'Take Snapshot';
+  section.appendChild(btn);
+  const count = document.createElement('span');
+  count.className = 'ws-muted';
+  count.textContent = snapshots.length + ' snapshots';
+  section.appendChild(count);
+  panel.appendChild(section);
+
+  // Snapshot list
+  const list = document.createElement('div');
+  list.className = 'ws-snapshot-list';
+  for (const s of snapshots) {
+    const item = document.createElement('div');
+    item.className = 'ws-snapshot-item';
+
+    const header = document.createElement('div');
+    header.className = 'ws-snapshot-header';
+    const sLabel = document.createElement('span');
+    sLabel.className = 'ws-snapshot-label';
+    sLabel.textContent = s.label;
+    const sWords = document.createElement('span');
+    sWords.textContent = s.wordCount + ' words';
+    header.appendChild(sLabel);
+    header.appendChild(sWords);
+    item.appendChild(header);
+
+    const time = document.createElement('div');
+    time.className = 'ws-snapshot-time';
+    time.textContent = new Date(s.timestamp).toLocaleString();
+    item.appendChild(time);
+
+    const actions = document.createElement('div');
+    actions.className = 'ws-snapshot-actions';
+    for (const [action, text, cls] of [
+      ['restore', 'Restore', ''],
+      ['diff', 'Diff', ''],
+      ['delete', 'Delete', 'ws-btn-danger'],
+    ]) {
+      const actionBtn = document.createElement('button');
+      actionBtn.className = 'ws-btn ws-btn-sm' + (cls ? ' ' + cls : '');
+      actionBtn.textContent = text;
+      actionBtn.addEventListener('click', () => {
+        if (action === 'restore') {
+          const content = engines.snapshots.restore(s.id);
+          editor.insertAtCursor(content);
+        } else if (action === 'delete') {
+          engines.snapshots.delete(s.id);
+          renderSnapshotsPanel(container, { engines, editor });
+        } else if (action === 'diff') {
+          const current = editor.getContent() || '';
+          const result = engines.snapshots.diff(s.id, current);
+          alert('+' + result.added + ' lines added, -' + result.removed + ' lines removed');
+        }
+      });
+      actions.appendChild(actionBtn);
+    }
+    item.appendChild(actions);
+    list.appendChild(item);
+  }
+  panel.appendChild(list);
+  container.appendChild(panel);
+
+  // Take snapshot button handler
+  container.querySelector('#ws-take-snapshot').addEventListener('click', () => {
+    const content = editor.getContent() || '';
+    engines.snapshots.create(content, 'manual');
+    renderSnapshotsPanel(container, { engines, editor });
+  });
+}
+
+module.exports = { renderSnapshotsPanel };

src/plugins/built-in/writing-studio/project-manager.js

@@ -0,0 +1,74 @@
+class ProjectManager {
+  /**
+   * @param {object} fs - { readFile(path), writeFile(path, content), fileExists(path), listDir(path) }
+   */
+  constructor(fs) {
+    this.fs = fs;
+  }
+
+  createProject(dir, opts) {
+    const project = {
+      title: opts.title,
+      type: opts.type || 'manuscript',
+      target: { words: opts.targetWords || 0, deadline: opts.deadline || null },
+      chapters: [],
+      metadata: opts.metadata || {},
+    };
+    this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
+    return project;
+  }
+
+  loadProject(dir) {
+    const raw = this.fs.readFile(dir + '/.project.json');
+    if (!raw) return null;
+    return JSON.parse(raw);
+  }
+
+  _saveProject(dir, project) {
+    this.fs.writeFile(dir + '/.project.json', JSON.stringify(project, null, 2));
+  }
+
+  addChapter(dir, chapter) {
+    const project = this.loadProject(dir);
+    if (!project) throw new Error('Project not found');
+    project.chapters.push(chapter);
+    this._saveProject(dir, project);
+  }
+
+  updateChapter(dir, index, updates) {
+    const project = this.loadProject(dir);
+    if (!project) throw new Error('Project not found');
+    Object.assign(project.chapters[index], updates);
+    this._saveProject(dir, project);
+  }
+
+  compileManuscript(dir) {
+    const project = this.loadProject(dir);
+    if (!project) throw new Error('Project not found');
+    const parts = [];
+    for (const ch of project.chapters) {
+      const content = this.fs.readFile(dir + '/' + ch.file);
+      if (content) parts.push(content);
+    }
+    return parts.join('\n\n---\n\n');
+  }
+
+  getStats(dir) {
+    const project = this.loadProject(dir);
+    if (!project) throw new Error('Project not found');
+    let totalWords = 0;
+    for (const ch of project.chapters) {
+      const content = this.fs.readFile(dir + '/' + ch.file);
+      if (content) totalWords += content.split(/\s+/).filter(Boolean).length;
+    }
+    const target = project.target.words || 0;
+    return {
+      totalWords,
+      chapterCount: project.chapters.length,
+      targetWords: target,
+      pctComplete: target > 0 ? Math.min(100, Math.round((totalWords / target) * 100)) : 0,
+    };
+  }
+}
+
+module.exports = { ProjectManager };

src/plugins/built-in/writing-studio/snapshot-manager.js

@@ -0,0 +1,77 @@
+class SnapshotManager {
+  /**
+   * @param {object} store - { get(key), set(key, value) }
+   * @param {string} storeKey - settings key for snapshots
+   */
+  constructor(store, storeKey = 'plugins.writing-studio.snapshots') {
+    this.store = store;
+    this.storeKey = storeKey;
+  }
+
+  _getAll() {
+    const raw = this.store.get(this.storeKey);
+    return raw ? JSON.parse(raw) : [];
+  }
+
+  _saveAll(snaps) {
+    this.store.set(this.storeKey, JSON.stringify(snaps));
+  }
+
+  create(content, label = 'manual') {
+    const snaps = this._getAll();
+    const snap = {
+      id: 'snap-' + Date.now() + '-' + Math.random().toString(36).slice(2, 8),
+      timestamp: new Date().toISOString(),
+      content,
+      wordCount: content.split(/\s+/).filter(Boolean).length,
+      label,
+    };
+    snaps.unshift(snap);
+    this._saveAll(snaps);
+    return snap;
+  }
+
+  list() {
+    return this._getAll();
+  }
+
+  getById(id) {
+    return this._getAll().find((s) => s.id === id) || null;
+  }
+
+  restore(id) {
+    const snap = this.getById(id);
+    if (!snap) throw new Error('Snapshot not found');
+    return snap.content;
+  }
+
+  delete(id) {
+    const snaps = this._getAll().filter((s) => s.id !== id);
+    this._saveAll(snaps);
+  }
+
+  diff(id, currentContent) {
+    const snap = this.getById(id);
+    if (!snap) throw new Error('Snapshot not found');
+    const oldLines = snap.content.split('\n');
+    const newLines = currentContent.split('\n');
+    const oldSet = new Set(oldLines);
+    const newSet = new Set(newLines);
+    let added = 0;
+    let removed = 0;
+    for (const line of newLines) {
+      if (!oldSet.has(line)) added++;
+    }
+    for (const line of oldLines) {
+      if (!newSet.has(line)) removed++;
+    }
+    return { added, removed };
+  }
+
+  prune(keepCount) {
+    const snaps = this._getAll();
+    this._saveAll(snaps.slice(0, keepCount));
+  }
+}
+
+module.exports = { SnapshotManager };

src/plugins/built-in/writing-studio/sprint-engine.js

@@ -0,0 +1,53 @@
+class SprintEngine {
+  /**
+   * @param {object} opts
+   * @param {function} opts.onEvent - callback(event_name, data)
+   */
+  constructor(opts = {}) {
+    this.onEvent = opts.onEvent || (() => {});
+    this._active = false;
+    this._startTime = null;
+    this._duration = 0;
+    this._initialWords = 0;
+  }
+
+  start(durationMinutes, currentWordCount) {
+    if (this._active) throw new Error('Sprint already active');
+    this._active = true;
+    this._startTime = Date.now();
+    this._duration = durationMinutes * 60 * 1000;
+    this._initialWords = currentWordCount;
+  }
+
+  stop(currentWordCount) {
+    if (!this._active) throw new Error('No active sprint');
+    const elapsed = Date.now() - this._startTime;
+    const wordDelta = Math.max(0, currentWordCount - this._initialWords);
+    const elapsedMinutes = elapsed / 60000;
+    const wpm = elapsedMinutes > 0 ? Math.round(wordDelta / elapsedMinutes) : 0;
+    this._active = false;
+    this._startTime = null;
+    return { wordDelta, elapsed, wpm };
+  }
+
+  tick(elapsedMs) {
+    if (!this._active) return;
+    const remaining = Math.max(0, this._duration - elapsedMs);
+    this.onEvent('sprint:tick', { remaining, elapsed: elapsedMs });
+    if (remaining <= 0) {
+      this._active = false;
+      this.onEvent('sprint:complete', { expired: true });
+    }
+  }
+
+  isActive() {
+    return this._active;
+  }
+
+  getRemaining() {
+    if (!this._active) return 0;
+    return Math.max(0, this._duration - (Date.now() - this._startTime));
+  }
+}
+
+module.exports = { SprintEngine };

src/plugins/event-bus.js

@@ -0,0 +1,43 @@
+class EventBus {
+  constructor() {
+    this.listeners = new Map();
+  }
+
+  on(event, handler) {
+    if (!this.listeners.has(event)) {
+      this.listeners.set(event, []);
+    }
+    this.listeners.get(event).push(handler);
+  }
+
+  off(event, handler) {
+    if (!handler) {
+      this.listeners.delete(event);
+      return;
+    }
+    const handlers = this.listeners.get(event);
+    if (handlers) {
+      const idx = handlers.indexOf(handler);
+      if (idx !== -1) handlers.splice(idx, 1);
+    }
+  }
+
+  emit(event, payload) {
+    const handlers = this.listeners.get(event);
+    if (!handlers) return;
+    for (const handler of handlers) {
+      try {
+        handler(payload);
+      } catch (err) {
+        console.error(`[EventBus] Error in handler for "${event}":`, err);
+      }
+    }
+  }
+
+  hasHandler(event) {
+    const handlers = this.listeners.get(event);
+    return handlers !== undefined && handlers !== null && handlers.length > 0;
+  }
+}
+
+module.exports = { EventBus };

src/plugins/plugin-api.js

@@ -0,0 +1,23 @@
+class PluginAPI {
+  /**
+   * Called when the plugin is discovered and loaded.
+   * Receives a scoped context object with APIs.
+   * @param {object} context - Plugin context (sidebar, commands, settings, etc.)
+   */
+  init(context) {
+    this.context = context;
+  }
+
+  /** Called when the plugin is activated (e.g., sidebar panel clicked). */
+  activate() {}
+
+  /** Called when the plugin is deactivated. */
+  deactivate() {}
+
+  /** Returns the parsed manifest.json for this plugin. */
+  getManifest() {
+    return this._manifest || null;
+  }
+}
+
+module.exports = { PluginAPI };

src/plugins/plugin-context.js

@@ -0,0 +1,75 @@
+class PluginContext {
+  /**
+   * @param {object} deps - Injected dependencies
+   * @param {string} deps.pluginId - Plugin unique ID (for namespacing)
+   * @param {object} deps.sidebar - SidebarManager.registerPanel
+   * @param {object} deps.commands - CommandPalette.register
+   * @param {object} deps.statusBar - StatusBar.registerIndicator
+   * @param {object} deps.eventBus - EventBus instance
+   * @param {object} deps.settings - { get, set, onChanged }
+   * @param {object} deps.editor - { getContent, getSelection, insertAtCursor, onContentChanged }
+   * @param {object} deps.ipc - { invoke, on }
+   * @param {object} deps.exportHooks - { preHooks: [], postHooks: [] }
+   */
+  constructor(deps) {
+    const { pluginId, sidebar, commands, statusBar, eventBus, settings, editor, ipc, exportHooks } =
+      deps;
+
+    this.sidebar = {
+      registerPanel: (id, opts) => sidebar.registerPanel(`${pluginId}:${id}`, opts),
+    };
+
+    this.commands = {
+      register: (id, label, handler, shortcut) => {
+        const safeHandler = (...args) => {
+          try {
+            handler(...args);
+          } catch (err) {
+            console.error(`[Plugin:${pluginId}] Command "${id}" error:`, err);
+          }
+        };
+        commands.register(`${pluginId}:${id}`, label, safeHandler, shortcut);
+      },
+    };
+
+    this.statusBar = {
+      registerIndicator: (id, opts) => statusBar.registerIndicator(`${pluginId}:${id}`, opts),
+    };
+
+    this.settings = {
+      get: (key) => settings.get(`plugins.${pluginId}.${key}`),
+      set: (key, value) => settings.set(`plugins.${pluginId}.${key}`, value),
+      onChanged: (key, cb) => settings.onChanged(`plugins.${pluginId}.${key}`, cb),
+    };
+
+    this.editor = {
+      getContent: () => editor.getContent(),
+      getSelection: () => editor.getSelection(),
+      insertAtCursor: (text) => editor.insertAtCursor(text),
+      onContentChanged: (cb) => editor.onContentChanged(cb),
+    };
+
+    this.events = {
+      on: (event, handler) => eventBus.on(event, handler),
+      off: (event, handler) => eventBus.off(event, handler),
+      emit: (event, payload) => eventBus.emit(event, payload),
+      hasHandler: (event) => eventBus.hasHandler(event),
+    };
+
+    this.ipc = {
+      invoke: (channel, ...args) => ipc.invoke(channel, ...args),
+      on: (channel, handler) => ipc.on(channel, handler),
+    };
+
+    this.exports = {
+      registerPreHook: (handler) => {
+        if (exportHooks) exportHooks.preHooks.push(handler);
+      },
+      registerPostHook: (handler) => {
+        if (exportHooks) exportHooks.postHooks.push(handler);
+      },
+    };
+  }
+}
+
+module.exports = { PluginContext };

src/plugins/plugin-loader.js

@@ -0,0 +1,78 @@
+const fs = require('fs');
+const path = require('path');
+
+class PluginLoader {
+  /**
+   * @param {string[]} searchDirs - Directories to scan for plugin folders
+   */
+  constructor(searchDirs = []) {
+    this.searchDirs = searchDirs;
+    this.loadedIds = new Set();
+  }
+
+  /**
+   * Discover plugins by scanning searchDirs for manifest.json files.
+   * Returns array of { id, name, version, description, manifest, PluginClass, dir }
+   */
+  discoverPlugins() {
+    const plugins = [];
+    for (const dir of this.searchDirs) {
+      if (!fs.existsSync(dir)) continue;
+      const entries = fs.readdirSync(dir, { withFileTypes: true });
+      for (const entry of entries) {
+        if (!entry.isDirectory()) continue;
+        const pluginDir = path.join(dir, entry.name);
+        const manifestPath = path.join(pluginDir, 'manifest.json');
+        if (!fs.existsSync(manifestPath)) continue;
+        try {
+          const raw = fs.readFileSync(manifestPath, 'utf-8');
+          const manifest = JSON.parse(raw);
+          this.validateManifest(manifest);
+          let PluginClass = null;
+          const indexPath = path.join(pluginDir, 'index.js');
+          if (fs.existsSync(indexPath)) {
+            try {
+              const loaded = require(indexPath);
+              PluginClass = loaded.Plugin || loaded.default || null;
+            } catch (err) {
+              console.error(
+                `[PluginLoader] Failed to load index.js for "${manifest.id}":`,
+                err.message
+              );
+              continue;
+            }
+          }
+          plugins.push({
+            id: manifest.id,
+            name: manifest.name,
+            version: manifest.version,
+            description: manifest.description,
+            manifest,
+            PluginClass,
+            dir: pluginDir,
+          });
+          this.loadedIds.add(manifest.id);
+        } catch (err) {
+          console.error(`[PluginLoader] Skipping plugin in ${pluginDir}:`, err.message);
+        }
+      }
+    }
+    return plugins;
+  }
+
+  /**
+   * Validate a manifest object. Throws on invalid.
+   */
+  validateManifest(manifest) {
+    if (!manifest.id) throw new Error('Manifest missing required field: id');
+    if (!manifest.name) throw new Error('Manifest missing required field: name');
+    if (!manifest.version) throw new Error('Manifest missing required field: version');
+    if (!manifest.description) throw new Error('Manifest missing required field: description');
+    if (this.loadedIds.has(manifest.id)) {
+      throw new Error(`Duplicate plugin id: "${manifest.id}"`);
+    }
+    return true;
+  }
+}
+
+module.exports = { PluginLoader };

src/plugins/plugin-registry.js

@@ -0,0 +1,80 @@
+const { PluginContext } = require('./plugin-context');
+const { PluginAPI } = require('./plugin-api');
+
+class PluginRegistry {
+  constructor(deps) {
+    this.deps = deps;
+    this.plugins = new Map();
+    this.exportHooks = { preHooks: [], postHooks: [] };
+  }
+
+  /**
+   * Register a discovered plugin. Creates instance, builds context, calls init.
+   * If init throws, plugin is NOT registered.
+   */
+  register(pluginInfo) {
+    const { id, name, version, description, manifest, PluginClass, dir } = pluginInfo;
+
+    let instance;
+    if (PluginClass) {
+      instance = new PluginClass();
+    } else {
+      instance = new PluginAPI();
+    }
+    instance._manifest = manifest;
+
+    const context = new PluginContext({
+      pluginId: id,
+      sidebar: this.deps.sidebar,
+      commands: this.deps.commands,
+      statusBar: this.deps.statusBar,
+      eventBus: this.deps.eventBus,
+      settings: this.deps.settings,
+      editor: this.deps.editor,
+      ipc: this.deps.ipc,
+      exportHooks: this.exportHooks,
+    });
+
+    try {
+      instance.init(context);
+    } catch (err) {
+      console.error(`[PluginRegistry] Plugin "${id}" init failed:`, err.message);
+      return;
+    }
+
+    this.plugins.set(id, { id, name, version, description, manifest, instance, dir, context });
+    console.log(`[PluginRegistry] Registered plugin: ${name} v${version}`);
+  }
+
+  getPlugin(id) {
+    return this.plugins.get(id);
+  }
+
+  getAll() {
+    return Array.from(this.plugins.values());
+  }
+
+  activate(id) {
+    const plugin = this.plugins.get(id);
+    if (plugin?.instance) {
+      try {
+        plugin.instance.activate();
+      } catch (err) {
+        console.error(`[PluginRegistry] Plugin "${id}" activate error:`, err.message);
+      }
+    }
+  }
+
+  deactivate(id) {
+    const plugin = this.plugins.get(id);
+    if (plugin?.instance) {
+      try {
+        plugin.instance.deactivate();
+      } catch (err) {
+        console.error(`[PluginRegistry] Plugin "${id}" deactivate error:`, err.message);
+      }
+    }
+  }
+}
+
+module.exports = { PluginRegistry };

src/plugins/settings-store.js

@@ -0,0 +1,23 @@
+class SettingsStore {
+  /**
+   * @param {object} backend - { get(key), set(key, value) } backed by main process store
+   */
+  constructor(backend) {
+    this.backend = backend;
+  }
+
+  get(key) {
+    return this.backend.get(key);
+  }
+
+  set(key, value) {
+    this.backend.set(key, value);
+  }
+
+  onChanged(_key, _callback) {
+    // Deferred: plugins read settings on init/activate for MVP.
+    // Full change notification requires IPC watcher in main process.
+  }
+}
+
+module.exports = { SettingsStore };

src/preload.js

@@ -9,7 +9,7 @@
  * - All IPC channels are explicitly whitelisted
  * - Prevents XSS from escalating to full system access
  *
- * @version 4.0.0
+ * @version 4.4.1
  */
 
 const { contextBridge, ipcRenderer } = require('electron');
@@ -23,6 +23,7 @@ const ALLOWED_SEND_CHANNELS = [
   'save-recent-files',
   'clear-recent-files',
   'renderer-ready',
+  'select-custom-css',
 
   // Theme
   'get-theme',
@@ -101,6 +102,14 @@ const ALLOWED_SEND_CHANNELS = [
 
   // File Explorer
   'list-directory',
+  'read-file',
+  'write-file',
+  'delete-file',
+  'ensure-directory',
+  'path-exists',
+  'is-directory',
+  'copy-path',
+  'move-path',
 
   // Git
   'git-status',
@@ -127,7 +136,11 @@ const ALLOWED_SEND_CHANNELS = [
   'export',
 
   // Git diff
-  'git-diff'
+  'git-diff',
+
+  // Plugin settings
+  'plugin-settings:get',
+  'plugin-settings:set',
 ];
 
 const ALLOWED_RECEIVE_CHANNELS = [
@@ -138,6 +151,8 @@ const ALLOWED_RECEIVE_CHANNELS = [
   'get-content-for-save',
   'get-content-for-spreadsheet',
   'recent-files-cleared',
+  'load-custom-css',
+  'clear-custom-css',
 
   // UI toggles
   'toggle-preview',
@@ -222,7 +237,7 @@ const ALLOWED_RECEIVE_CHANNELS = [
   'load-template-menu',
   'toggle-command-palette',
   'toggle-sidebar-panel',
-  'toggle-bottom-panel'
+  'toggle-bottom-panel',
 ];
 
 /**
@@ -321,23 +336,31 @@ contextBridge.exposeInMainWorld('electronAPI', {
     setCurrent: (filePath) => ipcRenderer.send('set-current-file', filePath),
     saveRecent: (recentFiles) => ipcRenderer.send('save-recent-files', recentFiles),
     clearRecent: () => ipcRenderer.send('clear-recent-files'),
-    rendererReady: () => ipcRenderer.send('renderer-ready')
+    rendererReady: () => ipcRenderer.send('renderer-ready'),
+    read: (filePath) => ipcRenderer.invoke('read-file', filePath),
+    write: (filePath, content) => ipcRenderer.invoke('write-file', { path: filePath, content }),
+    delete: (filePath) => ipcRenderer.invoke('delete-file', filePath),
+    ensureDir: (dirPath) => ipcRenderer.invoke('ensure-directory', dirPath),
+    exists: (filePath) => ipcRenderer.invoke('path-exists', filePath),
+    isDirectory: (filePath) => ipcRenderer.invoke('is-directory', filePath),
+    copy: (source, destination) => ipcRenderer.invoke('copy-path', { source, destination }),
+    move: (source, destination) => ipcRenderer.invoke('move-path', { source, destination }),
   },
 
   // Theme Operations
   theme: {
-    get: () => ipcRenderer.send('get-theme')
+    get: () => ipcRenderer.send('get-theme'),
   },
 
   // Print Operations
   print: {
-    doPrint: (options) => ipcRenderer.send('do-print', options)
+    doPrint: (options) => ipcRenderer.send('do-print', options),
   },
 
   // Export Operations
   export: {
     withOptions: (format, options) => ipcRenderer.send('export-with-options', { format, options }),
-    spreadsheet: (content, format) => ipcRenderer.send('export-spreadsheet', { content, format })
+    spreadsheet: (content, format) => ipcRenderer.send('export-spreadsheet', { content, format }),
   },
 
   // Batch Conversion
@@ -345,7 +368,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
     convert: (inputFolder, outputFolder, format, options) => {
       ipcRenderer.send('batch-convert', { inputFolder, outputFolder, format, options });
     },
-    selectFolder: (type) => ipcRenderer.send('select-folder', type)
+    selectFolder: (type) => ipcRenderer.send('select-folder', type),
   },
 
   // Universal Converter
@@ -354,8 +377,14 @@ contextBridge.exposeInMainWorld('electronAPI', {
       ipcRenderer.send('universal-convert', { tool, fromFormat, toFormat, filePath });
     },
     convertBatch: (tool, fromFormat, toFormat, inputFolder, outputFolder) => {
-      ipcRenderer.send('universal-convert-batch', { tool, fromFormat, toFormat, inputFolder, outputFolder });
-    }
+      ipcRenderer.send('universal-convert-batch', {
+        tool,
+        fromFormat,
+        toFormat,
+        inputFolder,
+        outputFolder,
+      });
+    },
   },
 
   // Header/Footer Operations
@@ -363,22 +392,23 @@ contextBridge.exposeInMainWorld('electronAPI', {
     getSettings: () => ipcRenderer.send('get-header-footer-settings'),
     saveSettings: (settings) => ipcRenderer.send('save-header-footer-settings', settings),
     browseLogo: (position) => ipcRenderer.send('browse-header-footer-logo', position),
-    saveLogo: (position, filePath) => ipcRenderer.send('save-header-footer-logo', { position, filePath }),
-    clearLogo: (position) => ipcRenderer.send('clear-header-footer-logo', position)
+    saveLogo: (position, filePath) =>
+      ipcRenderer.send('save-header-footer-logo', { position, filePath }),
+    clearLogo: (position) => ipcRenderer.send('clear-header-footer-logo', position),
   },
 
   // Page Settings
   page: {
     getSettings: () => ipcRenderer.send('get-page-settings'),
     updateSettings: (settings) => ipcRenderer.send('update-page-settings', settings),
-    setCustomStartPage: (pageNumber) => ipcRenderer.send('set-custom-start-page', pageNumber)
+    setCustomStartPage: (pageNumber) => ipcRenderer.send('set-custom-start-page', pageNumber),
   },
 
   // PDF Operations
   pdf: {
     processOperation: (data) => ipcRenderer.send('process-pdf-operation', data),
     getPageCount: (filePath) => ipcRenderer.send('get-pdf-page-count', filePath),
-    selectFolder: (inputId) => ipcRenderer.send('select-pdf-folder', inputId)
+    selectFolder: (inputId) => ipcRenderer.send('select-pdf-folder', inputId),
   },
 
   // Image Converter Operations
@@ -387,7 +417,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
     batchConvert: (data) => ipcRenderer.send('image-batch-convert', data),
     resize: (data) => ipcRenderer.send('image-resize', data),
     compress: (data) => ipcRenderer.send('image-compress', data),
-    rotate: (data) => ipcRenderer.send('image-rotate', data)
+    rotate: (data) => ipcRenderer.send('image-rotate', data),
   },
 
   // Audio Converter Operations
@@ -396,7 +426,7 @@ contextBridge.exposeInMainWorld('electronAPI', {
     batchConvert: (data) => ipcRenderer.send('audio-batch-convert', data),
     extract: (data) => ipcRenderer.send('audio-extract', data),
     trim: (data) => ipcRenderer.send('audio-trim', data),
-    merge: (data) => ipcRenderer.send('audio-merge', data)
+    merge: (data) => ipcRenderer.send('audio-merge', data),
   },
 
   // Video Converter Operations
@@ -406,14 +436,16 @@ contextBridge.exposeInMainWorld('electronAPI', {
     compress: (data) => ipcRenderer.send('video-compress', data),
     trim: (data) => ipcRenderer.send('video-trim', data),
     extractFrames: (data) => ipcRenderer.send('video-frames', data),
-    toGif: (data) => ipcRenderer.send('video-gif', data)
+    toGif: (data) => ipcRenderer.send('video-gif', data),
   },
 
   // Generator Windows
   generators: {
     openAscii: () => ipcRenderer.send('open-ascii-generator'),
-    openTable: () => ipcRenderer.send('open-table-generator')
-  }
+    openTable: () => ipcRenderer.send('open-table-generator'),
+  },
+
+  getAppVersion: () => ipcRenderer.invoke('get-app-version'),
 });
 
 // Log successful preload initialization

src/print-preview.js

@@ -1,85 +1,85 @@
 class PrintPreview {
-    constructor() {
-        this.overlay = document.getElementById('print-preview-overlay');
-        this.modal = window.modals?.printPreviewModal;
-        this._lastContent = '';
-        this.setupEventListeners();
+  constructor() {
+    this.overlay = document.getElementById('print-preview-overlay');
+    this.modal = window.modals?.printPreviewModal;
+    this._lastContent = '';
+    this.setupEventListeners();
+  }
+
+  open(htmlContent) {
+    this._lastContent = htmlContent;
+    if (this.modal) {
+      this.modal.open();
+    } else {
+      this.overlay.classList.remove('hidden');
     }
+    this.updatePreview(htmlContent);
+    this.updateScaleLabel();
+  }
 
-    open(htmlContent) {
-        this._lastContent = htmlContent;
-        if (this.modal) {
-            this.modal.open();
-        } else {
-            this.overlay.classList.remove('hidden');
-        }
-        this.updatePreview(htmlContent);
-        this.updateScaleLabel();
+  close() {
+    if (this.modal) {
+      this.modal.close();
+    } else {
+      this.overlay.classList.add('hidden');
     }
+  }
 
-    close() {
-        if (this.modal) {
-            this.modal.close();
-        } else {
-            this.overlay.classList.add('hidden');
-        }
-    }
+  setupEventListeners() {
+    document.getElementById('print-preview-close')?.addEventListener('click', () => this.close());
+    document.getElementById('print-cancel')?.addEventListener('click', () => this.close());
+    document.getElementById('print-execute')?.addEventListener('click', () => this.executePrint());
 
-    setupEventListeners() {
-        document.getElementById('print-preview-close')?.addEventListener('click', () => this.close());
-        document.getElementById('print-cancel')?.addEventListener('click', () => this.close());
-        document.getElementById('print-execute')?.addEventListener('click', () => this.executePrint());
+    // Update preview on option changes
+    ['print-paper-size', 'print-orientation', 'print-margins'].forEach((id) => {
+      document.getElementById(id)?.addEventListener('change', () => this.refreshPreview());
+    });
 
-        // Update preview on option changes
-        ['print-paper-size', 'print-orientation', 'print-margins'].forEach(id => {
-            document.getElementById(id)?.addEventListener('change', () => this.refreshPreview());
-        });
+    // Scale slider
+    const scaleSlider = document.getElementById('print-scale');
+    scaleSlider?.addEventListener('input', () => this.updateScaleLabel());
 
-        // Scale slider
-        const scaleSlider = document.getElementById('print-scale');
-        scaleSlider?.addEventListener('input', () => this.updateScaleLabel());
+    // Page range toggle
+    document.getElementById('print-pages')?.addEventListener('change', (e) => {
+      const rangeInput = document.getElementById('print-page-range');
+      if (rangeInput) {
+        rangeInput.classList.toggle('hidden', e.target.value !== 'custom');
+      }
+    });
 
-        // Page range toggle
-        document.getElementById('print-pages')?.addEventListener('change', (e) => {
-            const rangeInput = document.getElementById('print-page-range');
-            if (rangeInput) {
-                rangeInput.classList.toggle('hidden', e.target.value !== 'custom');
-            }
-        });
+    // Note: Backdrop click and Escape key are now handled by ModalManager
+  }
 
-        // Note: Backdrop click and Escape key are now handled by ModalManager
-    }
+  updateScaleLabel() {
+    const scale = document.getElementById('print-scale')?.value || 100;
+    const label = document.getElementById('print-scale-value');
+    if (label) label.textContent = `${scale}%`;
+  }
 
-    updateScaleLabel() {
-        const scale = document.getElementById('print-scale')?.value || 100;
-        const label = document.getElementById('print-scale-value');
-        if (label) label.textContent = `${scale}%`;
-    }
+  updatePreview(htmlContent) {
+    const frame = document.getElementById('print-preview-frame');
+    if (!frame) return;
 
-    updatePreview(htmlContent) {
-        const frame = document.getElementById('print-preview-frame');
-        if (!frame) return;
+    this._lastContent = htmlContent;
 
-        this._lastContent = htmlContent;
+    const orientation = document.getElementById('print-orientation')?.value || 'portrait';
+    const paperSize = document.getElementById('print-paper-size')?.value || 'A4';
 
-        const orientation = document.getElementById('print-orientation')?.value || 'portrait';
-        const paperSize = document.getElementById('print-paper-size')?.value || 'A4';
+    // Get dimensions for paper size
+    const sizes = {
+      A3: { width: '297mm', height: '420mm' },
+      A4: { width: '210mm', height: '297mm' },
+      A5: { width: '148mm', height: '210mm' },
+      Letter: { width: '8.5in', height: '11in' },
+      Legal: { width: '8.5in', height: '14in' },
+      Tabloid: { width: '11in', height: '17in' },
+    };
 
-        // Get dimensions for paper size
-        const sizes = {
-            'A3': { width: '297mm', height: '420mm' },
-            'A4': { width: '210mm', height: '297mm' },
-            'A5': { width: '148mm', height: '210mm' },
-            'Letter': { width: '8.5in', height: '11in' },
-            'Legal': { width: '8.5in', height: '14in' },
-            'Tabloid': { width: '11in', height: '17in' },
-        };
+    const size = sizes[paperSize] || sizes['A4'];
+    const width = orientation === 'landscape' ? size.height : size.width;
+    const height = orientation === 'landscape' ? size.width : size.height;
 
-        const size = sizes[paperSize] || sizes['A4'];
-        const width = orientation === 'landscape' ? size.height : size.width;
-        const height = orientation === 'landscape' ? size.width : size.height;
-
-        const previewHtml = `
+    const previewHtml = `
             <!DOCTYPE html>
             <html>
             <head>
@@ -105,34 +105,34 @@ class PrintPreview {
             </html>
         `;
 
-        frame.srcdoc = previewHtml;
-    }
+    frame.srcdoc = previewHtml;
+  }
 
-    refreshPreview() {
-        if (this._lastContent) {
-            this.updatePreview(this._lastContent);
-        }
+  refreshPreview() {
+    if (this._lastContent) {
+      this.updatePreview(this._lastContent);
     }
+  }
 
-    getOptions() {
-        return {
-            paperSize: document.getElementById('print-paper-size')?.value || 'A4',
-            orientation: document.getElementById('print-orientation')?.value || 'portrait',
-            margins: document.getElementById('print-margins')?.value || 'default',
-            scale: parseInt(document.getElementById('print-scale')?.value || '100'),
-            headers: document.getElementById('print-headers')?.checked ?? true,
-            background: document.getElementById('print-background')?.checked ?? true,
-            pages: document.getElementById('print-pages')?.value || 'all',
-            pageRange: document.getElementById('print-page-range')?.value || '',
-        };
-    }
+  getOptions() {
+    return {
+      paperSize: document.getElementById('print-paper-size')?.value || 'A4',
+      orientation: document.getElementById('print-orientation')?.value || 'portrait',
+      margins: document.getElementById('print-margins')?.value || 'default',
+      scale: parseInt(document.getElementById('print-scale')?.value || '100'),
+      headers: document.getElementById('print-headers')?.checked ?? true,
+      background: document.getElementById('print-background')?.checked ?? true,
+      pages: document.getElementById('print-pages')?.value || 'all',
+      pageRange: document.getElementById('print-page-range')?.value || '',
+    };
+  }
 
-    executePrint() {
-        const options = this.getOptions();
-        const { ipcRenderer } = require('electron');
-        ipcRenderer.send('do-print-with-options', options);
-        this.close();
-    }
+  executePrint() {
+    const options = this.getOptions();
+    const { ipcRenderer } = require('electron');
+    ipcRenderer.send('do-print-with-options', options);
+    this.close();
+  }
 }
 
 module.exports = { PrintPreview };

src/repl/repl-panel.js

@@ -1,49 +1,49 @@
 class ReplPanel {
-    constructor() {
-        this.panel = document.getElementById('bottom-panel');
-        this.output = document.getElementById('repl-output');
-        this.setupEventListeners();
-    }
+  constructor() {
+    this.panel = document.getElementById('bottom-panel');
+    this.output = document.getElementById('repl-output');
+    this.setupEventListeners();
+  }
 
-    setupEventListeners() {
-        document.getElementById('bottom-panel-toggle')?.addEventListener('click', () => this.toggle());
-        document.getElementById('repl-clear')?.addEventListener('click', () => this.clear());
-    }
+  setupEventListeners() {
+    document.getElementById('bottom-panel-toggle')?.addEventListener('click', () => this.toggle());
+    document.getElementById('repl-clear')?.addEventListener('click', () => this.clear());
+  }
 
-    toggle() {
-        this.panel.classList.toggle('collapsed');
-        const btn = document.getElementById('bottom-panel-toggle');
-        if (btn) btn.textContent = this.panel.classList.contains('collapsed') ? '\u25BC' : '\u25B2';
-    }
+  toggle() {
+    this.panel.classList.toggle('collapsed');
+    const btn = document.getElementById('bottom-panel-toggle');
+    if (btn) btn.textContent = this.panel.classList.contains('collapsed') ? '\u25BC' : '\u25B2';
+  }
 
-    show() {
-        this.panel.classList.remove('collapsed');
-        const btn = document.getElementById('bottom-panel-toggle');
-        if (btn) btn.textContent = '\u25B2';
-    }
+  show() {
+    this.panel.classList.remove('collapsed');
+    const btn = document.getElementById('bottom-panel-toggle');
+    if (btn) btn.textContent = '\u25B2';
+  }
 
-    clear() {
-        if (this.output) this.output.innerHTML = '';
-    }
+  clear() {
+    if (this.output) this.output.innerHTML = '';
+  }
 
-    appendOutput(command, result) {
-        const entry = document.createElement('div');
-        entry.className = 'repl-entry';
-        entry.innerHTML = `
+  appendOutput(command, result) {
+    const entry = document.createElement('div');
+    entry.className = 'repl-entry';
+    entry.innerHTML = `
             <div class="repl-command">\u25B6 ${command}</div>
             ${result.stdout ? `<div class="repl-stdout">${this.escapeHtml(result.stdout)}</div>` : ''}
             ${result.stderr ? `<div class="repl-stderr">${this.escapeHtml(result.stderr)}</div>` : ''}
             ${result.error ? `<div class="repl-error">Error: ${this.escapeHtml(result.error)}</div>` : ''}
         `;
-        this.output?.appendChild(entry);
-        this.output?.scrollTo(0, this.output.scrollHeight);
-    }
+    this.output?.appendChild(entry);
+    this.output?.scrollTo(0, this.output.scrollHeight);
+  }
 
-    escapeHtml(text) {
-        const div = document.createElement('div');
-        div.textContent = text;
-        return div.innerHTML;
-    }
+  escapeHtml(text) {
+    const div = document.createElement('div');
+    div.textContent = text;
+    return div.innerHTML;
+  }
 }
 
 module.exports = { ReplPanel };

src/sidebar/explorer-panel.js

@@ -1,7 +1,5 @@
-const path = require('path');
-
 function renderExplorerPanel(container, { listDirectory, onFileOpen, currentDir }) {
-    container.innerHTML = `
+  container.innerHTML = `
         <div class="explorer-panel">
             <div class="explorer-toolbar">
                 <input type="text" class="explorer-path" id="explorer-path" value="${currentDir || ''}" placeholder="Open a folder..." readonly>
@@ -11,60 +9,86 @@ function renderExplorerPanel(container, { listDirectory, onFileOpen, currentDir
         </div>
     `;
 
-    document.getElementById('explorer-browse')?.addEventListener('click', async () => {
-        const dir = await listDirectory(null); // null means open folder dialog
-        if (dir) {
-            document.getElementById('explorer-path').value = dir.path;
-            renderTree(document.getElementById('explorer-tree'), dir.entries, listDirectory, onFileOpen, dir.path);
-        }
-    });
-
-    if (currentDir) {
-        listDirectory(currentDir).then(dir => {
-            if (dir) renderTree(document.getElementById('explorer-tree'), dir.entries, listDirectory, onFileOpen, currentDir);
-        });
+  document.getElementById('explorer-browse')?.addEventListener('click', async () => {
+    const dir = await listDirectory(null); // null means open folder dialog
+    if (dir) {
+      document.getElementById('explorer-path').value = dir.path;
+      renderTree(
+        document.getElementById('explorer-tree'),
+        dir.entries,
+        listDirectory,
+        onFileOpen,
+        dir.path
+      );
     }
+  });
+
+  if (currentDir) {
+    listDirectory(currentDir).then((dir) => {
+      if (dir)
+        renderTree(
+          document.getElementById('explorer-tree'),
+          dir.entries,
+          listDirectory,
+          onFileOpen,
+          currentDir
+        );
+    });
+  }
 }
 
-function renderTree(container, entries, listDirectory, onFileOpen, basePath) {
-    container.innerHTML = entries.map(entry => {
-        if (entry.isDirectory) {
-            return `<div class="tree-item tree-folder collapsed" data-path="${entry.path}">
+function renderTree(container, entries, listDirectory, onFileOpen, _basePath) {
+  container.innerHTML = entries
+    .map((entry) => {
+      if (entry.isDirectory) {
+        return `<div class="tree-item tree-folder collapsed" data-path="${entry.path}">
                 <span class="tree-icon">&#x25B6;</span>
                 <span class="tree-name">${entry.name}</span>
                 <div class="tree-children"></div>
             </div>`;
-        }
-        return `<div class="tree-item tree-file" data-path="${entry.path}">
+      }
+      return `<div class="tree-item tree-file" data-path="${entry.path}">
             <span class="tree-icon">${getFileIcon(entry.name)}</span>
             <span class="tree-name">${entry.name}</span>
         </div>`;
-    }).join('');
+    })
+    .join('');
 
-    container.querySelectorAll('.tree-folder').forEach(el => {
-        el.querySelector('.tree-name').addEventListener('click', async () => {
-            const isCollapsed = el.classList.contains('collapsed');
-            if (isCollapsed) {
-                const dir = await listDirectory(el.dataset.path);
-                if (dir) {
-                    const childContainer = el.querySelector('.tree-children');
-                    renderTree(childContainer, dir.entries, listDirectory, onFileOpen, el.dataset.path);
-                }
-            }
-            el.classList.toggle('collapsed');
-            el.querySelector('.tree-icon').textContent = el.classList.contains('collapsed') ? '\u25B6' : '\u25BC';
-        });
+  container.querySelectorAll('.tree-folder').forEach((el) => {
+    el.querySelector('.tree-name').addEventListener('click', async () => {
+      const isCollapsed = el.classList.contains('collapsed');
+      if (isCollapsed) {
+        const dir = await listDirectory(el.dataset.path);
+        if (dir) {
+          const childContainer = el.querySelector('.tree-children');
+          renderTree(childContainer, dir.entries, listDirectory, onFileOpen, el.dataset.path);
+        }
+      }
+      el.classList.toggle('collapsed');
+      el.querySelector('.tree-icon').textContent = el.classList.contains('collapsed')
+        ? '\u25B6'
+        : '\u25BC';
     });
+  });
 
-    container.querySelectorAll('.tree-file').forEach(el => {
-        el.addEventListener('click', () => onFileOpen(el.dataset.path));
-    });
+  container.querySelectorAll('.tree-file').forEach((el) => {
+    el.addEventListener('click', () => onFileOpen(el.dataset.path));
+  });
 }
 
 function getFileIcon(filename) {
-    const ext = filename.split('.').pop().toLowerCase();
-    const icons = { md: '\u{1F4DD}', js: '\u{1F4DC}', json: '{}', html: '\u{1F310}', css: '\u{1F3A8}', py: '\u{1F40D}', pdf: '\u{1F4D5}', txt: '\u{1F4C4}' };
-    return icons[ext] || '\u{1F4C4}';
+  const ext = filename.split('.').pop().toLowerCase();
+  const icons = {
+    md: '\u{1F4DD}',
+    js: '\u{1F4DC}',
+    json: '{}',
+    html: '\u{1F310}',
+    css: '\u{1F3A8}',
+    py: '\u{1F40D}',
+    pdf: '\u{1F4D5}',
+    txt: '\u{1F4C4}',
+  };
+  return icons[ext] || '\u{1F4C4}';
 }
 
 module.exports = { renderExplorerPanel };

src/sidebar/git-panel.js

@@ -1,5 +1,5 @@
-function renderGitPanel(container, { gitStatus, gitDiff, gitStage, gitCommit, gitLog }) {
-    container.innerHTML = `
+function renderGitPanel(container, { gitStatus, _gitDiff, gitStage, gitCommit, gitLog }) {
+  container.innerHTML = `
         <div class="git-panel">
             <div class="git-section">
                 <h4 class="git-section-title">Changes</h4>
@@ -19,66 +19,76 @@ function renderGitPanel(container, { gitStatus, gitDiff, gitStage, gitCommit, gi
         </div>
     `;
 
-    loadGitStatus();
+  loadGitStatus();
 
-    async function loadGitStatus() {
-        const status = await gitStatus();
-        const changesEl = document.getElementById('git-changes');
-        if (!status || !changesEl) return;
+  async function loadGitStatus() {
+    const status = await gitStatus();
+    const changesEl = document.getElementById('git-changes');
+    if (!status || !changesEl) return;
 
-        if (status.error) {
-            changesEl.innerHTML = `<p class="git-info">${status.error}</p>`;
-            return;
-        }
+    if (status.error) {
+      changesEl.innerHTML = `<p class="git-info">${status.error}</p>`;
+      return;
+    }
 
-        const files = [
-            ...status.modified.map(f => ({ file: f, status: 'M', color: '#f59e0b' })),
-            ...status.not_added.map(f => ({ file: f, status: '?', color: '#6b7280' })),
-            ...status.created.map(f => ({ file: f, status: 'A', color: '#10b981' })),
-            ...status.deleted.map(f => ({ file: f, status: 'D', color: '#ef4444' })),
-            ...status.staged.map(f => ({ file: f, status: 'S', color: '#3b82f6' })),
-        ];
+    const files = [
+      ...status.modified.map((f) => ({ file: f, status: 'M', color: '#f59e0b' })),
+      ...status.not_added.map((f) => ({ file: f, status: '?', color: '#6b7280' })),
+      ...status.created.map((f) => ({ file: f, status: 'A', color: '#10b981' })),
+      ...status.deleted.map((f) => ({ file: f, status: 'D', color: '#ef4444' })),
+      ...status.staged.map((f) => ({ file: f, status: 'S', color: '#3b82f6' })),
+    ];
 
-        if (files.length === 0) {
-            changesEl.innerHTML = '<p class="git-info">No changes</p>';
-        } else {
-            changesEl.innerHTML = files.map(f => `
+    if (files.length === 0) {
+      changesEl.innerHTML = '<p class="git-info">No changes</p>';
+    } else {
+      changesEl.innerHTML = files
+        .map(
+          (f) => `
                 <div class="git-file" data-file="${f.file}">
                     <span class="git-file-status" style="color:${f.color}">${f.status}</span>
                     <span class="git-file-name">${f.file}</span>
                     <button class="git-stage-btn" data-file="${f.file}" title="Stage file">+</button>
                 </div>
-            `).join('');
+            `
+        )
+        .join('');
 
-            changesEl.querySelectorAll('.git-stage-btn').forEach(btn => {
-                btn.addEventListener('click', async (e) => {
-                    e.stopPropagation();
-                    await gitStage([btn.dataset.file]);
-                    loadGitStatus();
-                });
-            });
-        }
+      changesEl.querySelectorAll('.git-stage-btn').forEach((btn) => {
+        btn.addEventListener('click', async (e) => {
+          e.stopPropagation();
+          await gitStage([btn.dataset.file]);
+          loadGitStatus();
+        });
+      });
+    }
 
-        // Load log
-        const log = await gitLog();
-        const logEl = document.getElementById('git-log');
-        if (log && logEl) {
-            logEl.innerHTML = (log.all || []).slice(0, 10).map(entry => `
+    // Load log
+    const log = await gitLog();
+    const logEl = document.getElementById('git-log');
+    if (log && logEl) {
+      logEl.innerHTML =
+        (log.all || [])
+          .slice(0, 10)
+          .map(
+            (entry) => `
                 <div class="git-log-entry">
                     <div class="git-log-msg">${entry.message}</div>
                     <div class="git-log-meta">${entry.date?.substring(0, 10) || ''} &middot; ${entry.author_name || ''}</div>
                 </div>
-            `).join('') || '<p class="git-info">No commits</p>';
-        }
+            `
+          )
+          .join('') || '<p class="git-info">No commits</p>';
     }
+  }
 
-    document.getElementById('git-commit-btn')?.addEventListener('click', async () => {
-        const msg = document.getElementById('git-commit-msg')?.value?.trim();
-        if (!msg) return;
-        await gitCommit(msg);
-        document.getElementById('git-commit-msg').value = '';
-        loadGitStatus();
-    });
+  document.getElementById('git-commit-btn')?.addEventListener('click', async () => {
+    const msg = document.getElementById('git-commit-msg')?.value?.trim();
+    if (!msg) return;
+    await gitCommit(msg);
+    document.getElementById('git-commit-msg').value = '';
+    loadGitStatus();
+  });
 }
 
 module.exports = { renderGitPanel };

src/sidebar/outline-panel.js

@@ -0,0 +1,120 @@
+/**
+ * Document Outline Panel
+ * Parses markdown headings and renders a navigable tree in the sidebar.
+ */
+
+function renderOutlinePanel(container, { getEditorContent, getActiveLine, onHeadingClick }) {
+  container.innerHTML = `
+        <div class="outline-panel">
+            <div class="outline-list" id="outline-list"></div>
+        </div>
+    `;
+
+  const listEl = document.getElementById('outline-list');
+  let headings = [];
+  let activeLine = 1;
+  let debounceTimer = null;
+
+  function parseHeadings(content) {
+    const result = [];
+    if (!content) return result;
+    const lines = content.split('\n');
+    const regex = /^(#{1,6})\s+(.+)$/;
+    for (let i = 0; i < lines.length; i++) {
+      const match = regex.exec(lines[i]);
+      if (match) {
+        result.push({
+          level: match[1].length,
+          text: match[2].trim(),
+          line: i + 1,
+        });
+      }
+    }
+    return result;
+  }
+
+  function findActiveHeading(currentLine) {
+    let active = null;
+    for (const h of headings) {
+      if (h.line <= currentLine) {
+        active = h;
+      } else {
+        break;
+      }
+    }
+    return active;
+  }
+
+  function renderHeadings() {
+    const content = getEditorContent();
+    headings = parseHeadings(content);
+    activeLine = getActiveLine();
+
+    if (headings.length === 0) {
+      listEl.innerHTML = `
+                <div class="outline-empty">
+                    <p>No headings found</p>
+                    <p class="outline-hint"># Heading 1</p>
+                    <p class="outline-hint">## Heading 2</p>
+                    <p class="outline-hint">### Heading 3</p>
+                </div>
+            `;
+      return;
+    }
+
+    const activeHeading = findActiveHeading(activeLine);
+
+    listEl.innerHTML =
+      headings
+        .map(
+          (h, idx) => `
+            <div class="outline-item outline-level-${h.level}${activeHeading && h.line === activeHeading.line ? ' active' : ''}"
+                 data-line="${h.line}" data-index="${idx}">
+                <span class="outline-text">${escapeHtml(h.text)}</span>
+                <span class="outline-badge">H${h.level}</span>
+            </div>
+        `
+        )
+        .join('') +
+      `<div class="outline-footer">${headings.length} heading${headings.length !== 1 ? 's' : ''}</div>`;
+
+    listEl.querySelectorAll('.outline-item').forEach((item) => {
+      item.addEventListener('click', () => {
+        const line = parseInt(item.dataset.line, 10);
+        onHeadingClick(line);
+      });
+    });
+  }
+
+  function escapeHtml(text) {
+    const div = document.createElement('div');
+    div.textContent = text;
+    return div.innerHTML;
+  }
+
+  function refresh() {
+    clearTimeout(debounceTimer);
+    debounceTimer = setTimeout(renderHeadings, 300);
+  }
+
+  function setActiveHeading(line) {
+    activeLine = line;
+    const activeHeading = findActiveHeading(line);
+
+    listEl.querySelectorAll('.outline-item').forEach((item) => {
+      const itemLine = parseInt(item.dataset.line, 10);
+      if (activeHeading && itemLine === activeHeading.line) {
+        item.classList.add('active');
+      } else {
+        item.classList.remove('active');
+      }
+    });
+  }
+
+  container._refreshOutline = refresh;
+  container._setActiveHeading = setActiveHeading;
+
+  renderHeadings();
+}
+
+module.exports = { renderOutlinePanel };

src/sidebar/sidebar-manager.js

@@ -1,50 +1,52 @@
 class SidebarManager {
-    constructor() {
-        this.sidebar = document.getElementById('sidebar');
-        this.panelContent = document.getElementById('sidebar-panel-content');
-        this.panelTitle = document.querySelector('.sidebar-panel-title');
-        this.activePanel = null;
-        this.panels = new Map();
-        this.setupEventListeners();
-    }
+  constructor() {
+    this.sidebar = document.getElementById('sidebar');
+    this.panelContent = document.getElementById('sidebar-panel-content');
+    this.panelTitle = document.querySelector('.sidebar-panel-title');
+    this.activePanel = null;
+    this.panels = new Map();
+    this.setupEventListeners();
+  }
 
-    setupEventListeners() {
-        document.querySelectorAll('.sidebar-icon').forEach(btn => {
-            btn.addEventListener('click', () => this.togglePanel(btn.dataset.panel));
-        });
-        document.querySelector('.sidebar-panel-close')?.addEventListener('click', () => this.collapse());
-    }
+  setupEventListeners() {
+    document.querySelectorAll('.sidebar-icon').forEach((btn) => {
+      btn.addEventListener('click', () => this.togglePanel(btn.dataset.panel));
+    });
+    document
+      .querySelector('.sidebar-panel-close')
+      ?.addEventListener('click', () => this.collapse());
+  }
 
-    registerPanel(name, { title, render }) {
-        this.panels.set(name, { title, render });
-    }
+  registerPanel(name, { title, render }) {
+    this.panels.set(name, { title, render });
+  }
 
-    togglePanel(name) {
-        if (this.activePanel === name) {
-            this.collapse();
-        } else {
-            this.expand(name);
-        }
+  togglePanel(name) {
+    if (this.activePanel === name) {
+      this.collapse();
+    } else {
+      this.expand(name);
     }
+  }
 
-    expand(name) {
-        const panel = this.panels.get(name);
-        if (!panel) return;
-        this.sidebar.classList.remove('collapsed');
-        this.panelTitle.textContent = panel.title;
-        this.panelContent.innerHTML = '';
-        panel.render(this.panelContent);
-        this.activePanel = name;
-        document.querySelectorAll('.sidebar-icon').forEach(btn => {
-            btn.classList.toggle('active', btn.dataset.panel === name);
-        });
-    }
+  expand(name) {
+    const panel = this.panels.get(name);
+    if (!panel) return;
+    this.sidebar.classList.remove('collapsed');
+    this.panelTitle.textContent = panel.title;
+    this.panelContent.innerHTML = '';
+    panel.render(this.panelContent);
+    this.activePanel = name;
+    document.querySelectorAll('.sidebar-icon').forEach((btn) => {
+      btn.classList.toggle('active', btn.dataset.panel === name);
+    });
+  }
 
-    collapse() {
-        this.sidebar.classList.add('collapsed');
-        this.activePanel = null;
-        document.querySelectorAll('.sidebar-icon').forEach(btn => btn.classList.remove('active'));
-    }
+  collapse() {
+    this.sidebar.classList.add('collapsed');
+    this.activePanel = null;
+    document.querySelectorAll('.sidebar-icon').forEach((btn) => btn.classList.remove('active'));
+  }
 }
 
 module.exports = { SidebarManager };

src/sidebar/snippets-panel.js

@@ -1,5 +1,5 @@
 function renderSnippetsPanel(container, { getSnippets, saveSnippet, deleteSnippet, onInsert }) {
-    container.innerHTML = `
+  container.innerHTML = `
         <div class="snippets-panel">
             <div class="snippets-toolbar">
                 <input type="text" class="snippets-search" id="snippets-search" placeholder="Search snippets...">
@@ -9,22 +9,29 @@ function renderSnippetsPanel(container, { getSnippets, saveSnippet, deleteSnippe
         </div>
     `;
 
-    let snippets = [];
+  let snippets = [];
 
-    async function loadSnippets() {
-        snippets = await getSnippets() || [];
-        renderList(document.getElementById('snippets-search')?.value || '');
-    }
+  async function loadSnippets() {
+    snippets = (await getSnippets()) || [];
+    renderList(document.getElementById('snippets-search')?.value || '');
+  }
 
-    function renderList(query) {
-        const list = document.getElementById('snippets-list');
-        if (!list) return;
+  function renderList(query) {
+    const list = document.getElementById('snippets-list');
+    if (!list) return;
 
-        const filtered = query
-            ? snippets.filter(s => s.name.toLowerCase().includes(query.toLowerCase()) || (s.language || '').toLowerCase().includes(query.toLowerCase()))
-            : snippets;
+    const filtered = query
+      ? snippets.filter(
+          (s) =>
+            s.name.toLowerCase().includes(query.toLowerCase()) ||
+            (s.language || '').toLowerCase().includes(query.toLowerCase())
+        )
+      : snippets;
 
-        list.innerHTML = filtered.length ? filtered.map(s => `
+    list.innerHTML = filtered.length
+      ? filtered
+          .map(
+            (s) => `
             <div class="snippet-item" data-id="${s.id}">
                 <div class="snippet-header">
                     <span class="snippet-name">${s.name}</span>
@@ -36,36 +43,41 @@ function renderSnippetsPanel(container, { getSnippets, saveSnippet, deleteSnippe
                     <button class="snippet-delete" data-id="${s.id}" title="Delete">&times;</button>
                 </div>
             </div>
-        `).join('') : '<p class="git-info">No snippets yet. Click + to add one.</p>';
+        `
+          )
+          .join('')
+      : '<p class="git-info">No snippets yet. Click + to add one.</p>';
 
-        list.querySelectorAll('.snippet-insert').forEach(btn => {
-            btn.addEventListener('click', () => {
-                const s = snippets.find(sn => sn.id === btn.dataset.id);
-                if (s) onInsert(s.code);
-            });
-        });
-
-        list.querySelectorAll('.snippet-delete').forEach(btn => {
-            btn.addEventListener('click', async () => {
-                await deleteSnippet(btn.dataset.id);
-                loadSnippets();
-            });
-        });
-    }
-
-    document.getElementById('snippets-search')?.addEventListener('input', (e) => renderList(e.target.value));
-
-    document.getElementById('snippets-add')?.addEventListener('click', () => {
-        const name = prompt('Snippet name:');
-        if (!name) return;
-        const language = prompt('Language (e.g., javascript, python, html):') || 'text';
-        const code = prompt('Paste your code snippet:');
-        if (!code) return;
-
-        saveSnippet({ id: Date.now().toString(), name, language, code }).then(() => loadSnippets());
+    list.querySelectorAll('.snippet-insert').forEach((btn) => {
+      btn.addEventListener('click', () => {
+        const s = snippets.find((sn) => sn.id === btn.dataset.id);
+        if (s) onInsert(s.code);
+      });
     });
 
-    loadSnippets();
+    list.querySelectorAll('.snippet-delete').forEach((btn) => {
+      btn.addEventListener('click', async () => {
+        await deleteSnippet(btn.dataset.id);
+        loadSnippets();
+      });
+    });
+  }
+
+  document
+    .getElementById('snippets-search')
+    ?.addEventListener('input', (e) => renderList(e.target.value));
+
+  document.getElementById('snippets-add')?.addEventListener('click', () => {
+    const name = prompt('Snippet name:');
+    if (!name) return;
+    const language = prompt('Language (e.g., javascript, python, html):') || 'text';
+    const code = prompt('Paste your code snippet:');
+    if (!code) return;
+
+    saveSnippet({ id: Date.now().toString(), name, language, code }).then(() => loadSnippets());
+  });
+
+  loadSnippets();
 }
 
 module.exports = { renderSnippetsPanel };

src/sidebar/templates-panel.js

@@ -1,34 +1,39 @@
-const fs = require('fs');
-const path = require('path');
-
 const templates = [
-    { name: 'Blog Post', file: 'blog-post.md', description: 'Article with frontmatter' },
-    { name: 'Meeting Notes', file: 'meeting-notes.md', description: 'Agenda, notes, action items' },
-    { name: 'Technical Spec', file: 'technical-spec.md', description: 'Requirements and architecture' },
-    { name: 'Changelog', file: 'changelog.md', description: 'Keep a Changelog format' },
-    { name: 'README', file: 'readme.md', description: 'Project documentation' },
-    { name: 'Project Plan', file: 'project-plan.md', description: 'Goals, milestones, timeline' },
-    { name: 'API Docs', file: 'api-docs.md', description: 'API endpoint documentation' },
-    { name: 'Tutorial', file: 'tutorial.md', description: 'Step-by-step guide' },
-    { name: 'Release Notes', file: 'release-notes.md', description: 'Version release summary' },
-    { name: 'Comparison', file: 'comparison.md', description: 'Feature comparison table' },
+  { name: 'Blog Post', file: 'blog-post.md', description: 'Article with frontmatter' },
+  { name: 'Meeting Notes', file: 'meeting-notes.md', description: 'Agenda, notes, action items' },
+  {
+    name: 'Technical Spec',
+    file: 'technical-spec.md',
+    description: 'Requirements and architecture',
+  },
+  { name: 'Changelog', file: 'changelog.md', description: 'Keep a Changelog format' },
+  { name: 'README', file: 'readme.md', description: 'Project documentation' },
+  { name: 'Project Plan', file: 'project-plan.md', description: 'Goals, milestones, timeline' },
+  { name: 'API Docs', file: 'api-docs.md', description: 'API endpoint documentation' },
+  { name: 'Tutorial', file: 'tutorial.md', description: 'Step-by-step guide' },
+  { name: 'Release Notes', file: 'release-notes.md', description: 'Version release summary' },
+  { name: 'Comparison', file: 'comparison.md', description: 'Feature comparison table' },
 ];
 
 function renderTemplatesPanel(container, onSelect) {
-    container.innerHTML = `
+  container.innerHTML = `
         <div class="panel-list">
-            ${templates.map(t => `
+            ${templates
+              .map(
+                (t) => `
                 <div class="panel-list-item template-item" data-file="${t.file}">
                     <div class="panel-list-item-title">${t.name}</div>
                     <div class="panel-list-item-desc">${t.description}</div>
                 </div>
-            `).join('')}
+            `
+              )
+              .join('')}
         </div>
     `;
 
-    container.querySelectorAll('.template-item').forEach(el => {
-        el.addEventListener('click', () => onSelect(el.dataset.file));
-    });
+  container.querySelectorAll('.template-item').forEach((el) => {
+    el.addEventListener('click', () => onSelect(el.dataset.file));
+  });
 }
 
 module.exports = { renderTemplatesPanel, templates };

src/styles-concreteinfo.css

@@ -1,7 +1,7 @@
 /**
  * ConcreteInfo Theme for MarkdownConverter
  * Based on logo palette: #464646, #9a9696, #e5461f, #e3e3e3, #0d0b09
- * Version: 3.0.0
+ * Version: 4.1.0
  */
 
 /* ============================================
@@ -675,18 +675,33 @@ body.theme-concreteinfo-dark .modal-footer {
    Animations
    ============================================ */
 @keyframes fadeIn {
-  from { opacity: 0; }
-  to { opacity: 1; }
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
 }
 
 @keyframes slideUp {
-  from { transform: translateY(20px); opacity: 0; }
-  to { transform: translateY(0); opacity: 1; }
+  from {
+    transform: translateY(20px);
+    opacity: 0;
+  }
+  to {
+    transform: translateY(0);
+    opacity: 1;
+  }
 }
 
 @keyframes pulse {
-  0%, 100% { transform: scale(1); }
-  50% { transform: scale(1.05); }
+  0%,
+  100% {
+    transform: scale(1);
+  }
+  50% {
+    transform: scale(1.05);
+  }
 }
 
 .animate-fade-in {

src/styles-modern.css

@@ -60,7 +60,15 @@
 
 /* Base styles - Reset is in styles.css */
 body {
-  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+  font-family:
+    'Inter',
+    -apple-system,
+    BlinkMacSystemFont,
+    'Segoe UI',
+    Roboto,
+    'Helvetica Neue',
+    Arial,
+    sans-serif;
   overflow: hidden;
   height: 100vh;
   /* Background controlled by themes - do not set here */
@@ -68,9 +76,15 @@ body {
 }
 
 @keyframes gradientShift {
-  0% { background-position: 0% 50%; }
-  50% { background-position: 100% 50%; }
-  100% { background-position: 0% 50%; }
+  0% {
+    background-position: 0% 50%;
+  }
+  50% {
+    background-position: 100% 50%;
+  }
+  100% {
+    background-position: 0% 50%;
+  }
 }
 
 .container {
@@ -345,7 +359,9 @@ body {
 }
 
 /* Preview Styles - Modern Typography */
-.preview-content h1, .preview-content h2, .preview-content h3 {
+.preview-content h1,
+.preview-content h2,
+.preview-content h3 {
   /* Color controlled by theme */
   font-weight: 700;
   margin-top: 28px;
@@ -695,11 +711,7 @@ body {
   left: 0;
   right: 0;
   bottom: 0;
-  background: linear-gradient(90deg,
-    transparent,
-    rgba(255, 255, 255, 0.3),
-    transparent
-  );
+  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
   animation: shimmer 2s infinite;
 }
 
@@ -798,7 +810,9 @@ body {
   border-radius: 50%;
   background: rgba(255, 255, 255, 0.4);
   transform: translate(-50%, -50%);
-  transition: width 0.6s, height 0.6s;
+  transition:
+    width 0.6s,
+    height 0.6s;
 }
 
 .toolbar button:hover::before,
@@ -1046,7 +1060,7 @@ body.theme-paper .pdf-viewer-toolbar,
 body.theme-rosepine-dawn .pdf-viewer-toolbar {
   background: linear-gradient(180deg, #fafafa 0%, #f0f0f0 100%) !important;
   border-bottom: 1px solid #d0d0d0 !important;
-  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
 }
 
 body.theme-light .pdf-viewer-toolbar button,
@@ -1061,7 +1075,7 @@ body.theme-rosepine-dawn .pdf-viewer-toolbar button {
   background: #fff !important;
   border: 1px solid #ccc !important;
   color: #333 !important;
-  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
 }
 
 body.theme-light .pdf-viewer-toolbar button:hover,
@@ -1444,7 +1458,7 @@ body.theme-rosepine-dawn .pdf-viewer {
   .export-dialog,
   .batch-dialog,
   .editor-pane,
-  [id^="editor-pane-"],
+  [id^='editor-pane-'],
   .new-tab-button,
   .tab-close {
     display: none !important;
@@ -1452,9 +1466,9 @@ body.theme-rosepine-dawn .pdf-viewer {
 
   /* Show preview content */
   .preview-pane,
-  [id^="preview-pane-"],
+  [id^='preview-pane-'],
   .preview-content,
-  [id^="preview-"] {
+  [id^='preview-'] {
     display: block !important;
     width: 100% !important;
     padding: 20px !important;
@@ -1491,9 +1505,9 @@ body.theme-rosepine-dawn .pdf-viewer {
   body.printing-no-styles .tab-content,
   body.printing-no-styles .pane,
   body.printing-no-styles .preview-pane,
-  body.printing-no-styles [id^="preview-pane-"],
+  body.printing-no-styles [id^='preview-pane-'],
   body.printing-no-styles .preview-content,
-  body.printing-no-styles [id^="preview-"] {
+  body.printing-no-styles [id^='preview-'] {
     background: white !important;
     color: #000 !important;
   }
@@ -1539,27 +1553,27 @@ body.theme-rosepine-dawn .pdf-viewer {
 
 /* Common dark theme styles for preview content */
 body.theme-dark .preview-content,
-body.theme-dark [id^="preview-"],
+body.theme-dark [id^='preview-'],
 body.theme-one-dark .preview-content,
-body.theme-one-dark [id^="preview-"],
+body.theme-one-dark [id^='preview-'],
 body.theme-dracula .preview-content,
-body.theme-dracula [id^="preview-"],
+body.theme-dracula [id^='preview-'],
 body.theme-nord .preview-content,
-body.theme-nord [id^="preview-"],
+body.theme-nord [id^='preview-'],
 body.theme-tokyo-night .preview-content,
-body.theme-tokyo-night [id^="preview-"],
+body.theme-tokyo-night [id^='preview-'],
 body.theme-palenight .preview-content,
-body.theme-palenight [id^="preview-"],
+body.theme-palenight [id^='preview-'],
 body.theme-ayu-dark .preview-content,
-body.theme-ayu-dark [id^="preview-"],
+body.theme-ayu-dark [id^='preview-'],
 body.theme-ayu-mirage .preview-content,
-body.theme-ayu-mirage [id^="preview-"],
+body.theme-ayu-mirage [id^='preview-'],
 body.theme-oceanic-next .preview-content,
-body.theme-oceanic-next [id^="preview-"],
+body.theme-oceanic-next [id^='preview-'],
 body.theme-gruvbox-dark .preview-content,
-body.theme-gruvbox-dark [id^="preview-"],
+body.theme-gruvbox-dark [id^='preview-'],
 body.theme-cobalt2 .preview-content,
-body.theme-cobalt2 [id^="preview-"] {
+body.theme-cobalt2 [id^='preview-'] {
   color: #e6e6e6;
   background: transparent;
 }
@@ -2145,204 +2159,601 @@ body.theme-rosepine-dawn .batch-dialog-footer {
    Command Palette (Ctrl+Shift+P)
    ======================================== */
 .command-palette-overlay {
-    position: fixed;
-    top: 0;
-    left: 0;
-    right: 0;
-    bottom: 0;
-    background: rgba(0, 0, 0, 0.3);
-    z-index: 1000;
-    display: flex;
-    justify-content: center;
-    padding-top: 80px;
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(0, 0, 0, 0.3);
+  z-index: 1000;
+  display: flex;
+  justify-content: center;
+  padding-top: 80px;
 }
 .command-palette-overlay.hidden {
-    display: none;
+  display: none;
 }
 .command-palette {
-    width: 560px;
-    max-height: 400px;
-    background: #fff;
-    border-radius: 12px;
-    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
-    overflow: hidden;
-    display: flex;
-    flex-direction: column;
+  width: 560px;
+  max-height: 400px;
+  background: #fff;
+  border-radius: 12px;
+  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
 }
 .command-palette-input {
-    width: 100%;
-    padding: 14px 18px;
-    border: none;
-    outline: none;
-    font-size: 15px;
-    border-bottom: 1px solid #e5e7eb;
-    font-family: inherit;
+  width: 100%;
+  padding: 14px 18px;
+  border: none;
+  outline: none;
+  font-size: 15px;
+  border-bottom: 1px solid #e5e7eb;
+  font-family: inherit;
 }
 .command-palette-results {
-    overflow-y: auto;
-    max-height: 340px;
+  overflow-y: auto;
+  max-height: 340px;
 }
 .command-item {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    padding: 10px 18px;
-    cursor: pointer;
-    font-size: 14px;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 10px 18px;
+  cursor: pointer;
+  font-size: 14px;
 }
 .command-item:hover,
 .command-item.selected {
-    background: #f3f4f6;
+  background: #f3f4f6;
 }
 .command-label strong {
-    color: #5661b3;
+  color: #5661b3;
 }
 .command-shortcut {
-    font-size: 12px;
-    color: #9ca3af;
-    background: #f3f4f6;
-    padding: 2px 8px;
-    border-radius: 4px;
-    font-family: 'JetBrains Mono', monospace;
+  font-size: 12px;
+  color: #9ca3af;
+  background: #f3f4f6;
+  padding: 2px 8px;
+  border-radius: 4px;
+  font-family: 'JetBrains Mono', monospace;
 }
 
 /* Dark theme command palette */
-body[class*="dark"] .command-palette {
-    background: #1e1e1e;
-    border: 1px solid #333;
+body[class*='dark'] .command-palette {
+  background: #1e1e1e;
+  border: 1px solid #333;
 }
-body[class*="dark"] .command-palette-input {
-    background: #1e1e1e;
-    color: #eee;
-    border-color: #333;
+body[class*='dark'] .command-palette-input {
+  background: #1e1e1e;
+  color: #eee;
+  border-color: #333;
 }
-body[class*="dark"] .command-item:hover,
-body[class*="dark"] .command-item.selected {
-    background: #2d2d2d;
+body[class*='dark'] .command-item:hover,
+body[class*='dark'] .command-item.selected {
+  background: #2d2d2d;
 }
-body[class*="dark"] .command-shortcut {
-    background: #333;
-    color: #888;
+body[class*='dark'] .command-shortcut {
+  background: #333;
+  color: #888;
 }
 
 /* ========================================
    Breadcrumb Bar
    ======================================== */
 .breadcrumb-bar {
-    padding: 4px 12px;
-    font-size: 12px;
-    color: var(--gray-500, #6b7280);
-    border-bottom: 1px solid var(--gray-200, #e5e7eb);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    flex-shrink: 0;
-    background: var(--gray-50, #f9fafb);
-    font-family: 'JetBrains Mono', monospace;
+  padding: 4px 12px;
+  font-size: 12px;
+  color: var(--gray-500, #6b7280);
+  border-bottom: 1px solid var(--gray-200, #e5e7eb);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  flex-shrink: 0;
+  background: var(--gray-50, #f9fafb);
+  font-family: 'JetBrains Mono', monospace;
 }
-body[class*="dark"] .breadcrumb-bar {
-    background: #1a1a1a;
-    color: #888;
-    border-color: #333;
+body[class*='dark'] .breadcrumb-bar {
+  background: #1a1a1a;
+  color: #888;
+  border-color: #333;
 }
 
 /* Print Preview Dialog */
 .print-preview-dialog {
-    width: 90vw;
-    max-width: 1200px;
-    height: 80vh;
-    display: flex;
-    flex-direction: column;
+  width: 90vw;
+  max-width: 1200px;
+  height: 80vh;
+  display: flex;
+  flex-direction: column;
 }
 .print-preview-body {
-    display: flex;
-    flex: 1;
-    overflow: hidden;
+  display: flex;
+  flex: 1;
+  overflow: hidden;
 }
 .print-preview-sidebar {
-    width: 260px;
-    padding: 16px;
-    border-right: 1px solid var(--gray-200, #e5e7eb);
-    overflow-y: auto;
-    flex-shrink: 0;
-    display: flex;
-    flex-direction: column;
-    gap: 16px;
+  width: 260px;
+  padding: 16px;
+  border-right: 1px solid var(--gray-200, #e5e7eb);
+  overflow-y: auto;
+  flex-shrink: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
 }
 .print-preview-content {
-    flex: 1;
-    padding: 16px;
-    background: #e5e7eb;
-    display: flex;
-    justify-content: center;
-    overflow: auto;
+  flex: 1;
+  padding: 16px;
+  background: #e5e7eb;
+  display: flex;
+  justify-content: center;
+  overflow: auto;
 }
 .print-preview-content iframe {
-    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
-    border-radius: 4px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
+  border-radius: 4px;
 }
 .print-option-group {
-    display: flex;
-    flex-direction: column;
-    gap: 6px;
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
 }
 .print-option-group label {
-    font-size: 13px;
-    font-weight: 500;
-    color: var(--gray-600, #4b5563);
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--gray-600, #4b5563);
 }
 .print-option-group select,
-.print-option-group input[type="text"] {
-    padding: 8px 10px;
-    border: 1px solid var(--gray-300, #d1d5db);
-    border-radius: 8px;
-    font-size: 13px;
-    background: white;
+.print-option-group input[type='text'] {
+  padding: 8px 10px;
+  border: 1px solid var(--gray-300, #d1d5db);
+  border-radius: 8px;
+  font-size: 13px;
+  background: white;
 }
 .scale-control {
-    display: flex;
-    align-items: center;
-    gap: 8px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
 }
-.scale-control input[type="range"] {
-    flex: 1;
+.scale-control input[type='range'] {
+  flex: 1;
 }
 .checkbox-label {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  cursor: pointer;
 }
 .print-range-input {
-    margin-top: 6px;
+  margin-top: 6px;
 }
 .print-actions {
-    display: flex;
-    gap: 8px;
-    margin-top: auto;
-    padding-top: 16px;
+  display: flex;
+  gap: 8px;
+  margin-top: auto;
+  padding-top: 16px;
 }
 .btn-primary {
-    flex: 1;
-    padding: 10px;
-    background: var(--primary-dark, #5661b3);
-    color: white;
-    border: none;
-    border-radius: 8px;
-    font-size: 14px;
-    font-weight: 500;
-    cursor: pointer;
+  flex: 1;
+  padding: 10px;
+  background: var(--primary-dark, #5661b3);
+  color: white;
+  border: none;
+  border-radius: 8px;
+  font-size: 14px;
+  font-weight: 500;
+  cursor: pointer;
 }
 .btn-primary:hover {
-    opacity: 0.9;
+  opacity: 0.9;
 }
 .btn-secondary {
-    flex: 1;
-    padding: 10px;
-    background: var(--gray-100, #f3f4f6);
-    color: var(--gray-700, #374151);
-    border: 1px solid var(--gray-300, #d1d5db);
-    border-radius: 8px;
-    font-size: 14px;
-    cursor: pointer;
+  flex: 1;
+  padding: 10px;
+  background: var(--gray-100, #f3f4f6);
+  color: var(--gray-700, #374151);
+  border: 1px solid var(--gray-300, #d1d5db);
+  border-radius: 8px;
+  font-size: 14px;
+  cursor: pointer;
+}
+
+/* Writing Analytics Modal */
+.analytics-overlay {
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.5);
+  backdrop-filter: blur(4px);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 10000;
+  animation: analyticsFadeIn 0.2s ease;
+}
+.analytics-modal {
+  background: var(--bg-primary, #fff);
+  border-radius: 12px;
+  width: 520px;
+  max-height: 80vh;
+  overflow-y: auto;
+  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
+  animation: analyticsSlideUp 0.3s ease;
+}
+.analytics-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 20px 24px;
+  border-bottom: 1px solid var(--border-color, #e5e7eb);
+}
+.analytics-header h2 {
+  margin: 0;
+  font-size: 18px;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+.analytics-close {
+  background: none;
+  border: none;
+  font-size: 24px;
+  cursor: pointer;
+  color: var(--text-muted);
+  padding: 4px 8px;
+  border-radius: 4px;
+}
+.analytics-close:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+}
+.analytics-body {
+  padding: 16px 24px 24px;
+}
+.analytics-section {
+  margin-bottom: 20px;
+}
+.analytics-section h3 {
+  font-size: 12px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  color: var(--text-muted, #9ca3af);
+  margin: 0 0 10px;
+}
+.analytics-row {
+  display: flex;
+  justify-content: space-between;
+  align-items: baseline;
+  padding: 6px 0;
+  font-size: 14px;
+}
+.analytics-label {
+  color: var(--text-secondary, #6b7280);
+}
+.analytics-value {
+  font-weight: 500;
+  color: var(--text-primary);
+}
+.analytics-value small {
+  color: var(--text-muted);
+  font-weight: 400;
+  margin-left: 6px;
+}
+.readability-meter {
+  height: 4px;
+  background: var(--bg-tertiary, #f3f4f6);
+  border-radius: 2px;
+  margin-top: 8px;
+  overflow: hidden;
+}
+.readability-fill {
+  height: 100%;
+  background: linear-gradient(90deg, #ef4444, #f59e0b, #10b981);
+  border-radius: 2px;
+  transition: width 0.5s ease;
+}
+.word-cloud {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: 8px;
+}
+.word-tag {
+  background: var(--bg-tertiary, #f3f4f6);
+  padding: 4px 10px;
+  border-radius: 12px;
+  font-size: 13px;
+  color: var(--text-secondary);
+}
+.word-tag small {
+  opacity: 0.5;
+  font-size: 10px;
+  margin-left: 2px;
+}
+.analytics-longest {
+  flex-direction: column;
+  gap: 4px;
+}
+.analytics-sentence-preview {
+  font-style: italic;
+  font-size: 13px;
+  color: var(--text-secondary);
+  font-weight: 400;
+}
+@keyframes analyticsFadeIn {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+@keyframes analyticsSlideUp {
+  from {
+    transform: translateY(16px);
+    opacity: 0;
+  }
+  to {
+    transform: translateY(0);
+    opacity: 1;
+  }
+}
+body[class*='dark'] .analytics-modal {
+  background: var(--gray-800, #1f2937);
+}
+body[class*='dark'] .word-tag {
+  background: var(--gray-700, #374151);
+}
+
+/* ========================================
+   Interactive PDF Thumbnail Sidebar Styles
+   ======================================== */
+.pdf-editor-body.side-by-side {
+  display: flex;
+  flex-direction: row;
+  gap: 16px;
+  height: 550px;
+  overflow: hidden;
+}
+
+.pdf-editor-left-panel {
+  flex: 1.2;
+  overflow-y: auto;
+  padding-right: 8px;
+  height: 100%;
+}
+
+.pdf-editor-right-panel {
+  flex: 0.8;
+  display: flex;
+  flex-direction: column;
+  border-left: 1px solid var(--border-color, #e5e7eb);
+  padding-left: 16px;
+  height: 100%;
+  overflow: hidden;
+}
+
+.pdf-editor-right-panel h4 {
+  margin: 0 0 4px 0;
+  font-size: 15px;
+  font-weight: 600;
+  color: var(--text-primary);
+}
+
+.pdf-editor-right-panel .sidebar-help {
+  margin: 0 0 12px 0;
+  font-size: 11px;
+  color: var(--text-secondary, #6b7280);
+  line-height: 1.4;
+}
+
+.pdf-thumbnail-grid {
+  flex: 1;
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
+  gap: 12px;
+  overflow-y: auto;
+  padding: 4px;
+}
+
+.pdf-thumbnail-card {
+  display: flex;
+  flex-direction: column;
+  border: 1px solid var(--border-color, #e5e7eb);
+  border-radius: 8px;
+  background: var(--bg-primary, #ffffff);
+  box-shadow: var(--shadow-sm);
+  padding: 8px;
+  transition: all var(--transition-speed, 0.3s) var(--transition-ease);
+  position: relative;
+  overflow: hidden;
+}
+
+.pdf-thumbnail-card:hover {
+  transform: translateY(-2px);
+  box-shadow: var(--shadow-md);
+  border-color: var(--primary-light, #8b9aff);
+}
+
+.pdf-thumbnail-card.marked-delete {
+  border-color: var(--error, #ef4444);
+  background: rgba(239, 68, 68, 0.05);
+}
+
+.pdf-thumbnail-card.marked-delete::after {
+  content: 'DELETE';
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%) rotate(-15deg);
+  background: rgba(239, 68, 68, 0.95);
+  color: #fff;
+  font-size: 10px;
+  font-weight: 700;
+  padding: 4px 8px;
+  border-radius: 4px;
+  pointer-events: none;
+  box-shadow: var(--shadow-sm);
+  letter-spacing: 0.5px;
+  white-space: nowrap;
+}
+
+.pdf-thumbnail-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 6px;
+}
+
+.pdf-thumbnail-header .badge {
+  font-size: 11px;
+  font-weight: 600;
+  background: var(--bg-tertiary, #f3f4f6);
+  color: var(--text-primary);
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-family: var(--font-mono, monospace);
+}
+
+.canvas-container {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  background: var(--bg-secondary, #f9fafb);
+  border: 1px solid var(--border-color, #e5e7eb);
+  border-radius: 6px;
+  padding: 6px;
+  height: 120px;
+  overflow: hidden;
+}
+
+.pdf-thumbnail-canvas {
+  max-width: 100%;
+  max-height: 100%;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
+  transition: transform 0.3s ease;
+}
+
+/* CSS Rotations */
+.rot90 {
+  transform: rotate(90deg);
+}
+.rot180 {
+  transform: rotate(180deg);
+}
+.rot270 {
+  transform: rotate(270deg);
+}
+
+.pdf-thumbnail-controls {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+  margin-top: 8px;
+}
+
+.pdf-thumbnail-controls button,
+.pdf-thumbnail-controls label {
+  font-size: 11px;
+}
+
+.btn-rotate-thumbnail {
+  background: var(--bg-tertiary, #f3f4f6);
+  border: 1px solid var(--border-color, #e5e7eb);
+  color: var(--text-primary);
+  border-radius: 4px;
+  padding: 3px 6px;
+  cursor: pointer;
+  width: 100%;
+  text-align: center;
+  transition: all 0.2s;
+  font-weight: 500;
+}
+
+.btn-rotate-thumbnail:hover {
+  background: var(--primary-light, #8b9aff);
+  color: #fff;
+  border-color: var(--primary-dark);
+}
+
+.delete-thumbnail-checkbox {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 4px;
+  cursor: pointer;
+  user-select: none;
+  font-weight: 500;
+  color: var(--text-secondary);
+}
+
+.delete-thumbnail-checkbox input {
+  margin: 0;
+  cursor: pointer;
+}
+
+.pdf-thumbnail-reorder {
+  display: flex;
+  justify-content: space-between;
+  gap: 4px;
+}
+
+.btn-reorder-left,
+.btn-reorder-right {
+  flex: 1;
+  background: var(--bg-tertiary, #f3f4f6);
+  border: 1px solid var(--border-color, #e5e7eb);
+  color: var(--text-primary);
+  border-radius: 4px;
+  padding: 2px;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.btn-reorder-left:hover:not(:disabled),
+.btn-reorder-right:hover:not(:disabled) {
+  background: var(--bg-secondary);
+  border-color: var(--text-muted);
+}
+
+.btn-reorder-left:disabled,
+.btn-reorder-right:disabled {
+  opacity: 0.3;
+  cursor: not-allowed;
+}
+
+.loading-thumbnails,
+.thumbnail-error {
+  grid-column: 1 / -1;
+  text-align: center;
+  padding: 40px 20px;
+  font-size: 13px;
+  color: var(--text-muted);
+}
+
+.thumbnail-error {
+  color: var(--error, #ef4444);
+}
+
+/* Dark mode adjustments */
+body[class*='dark'] .pdf-thumbnail-card {
+  background: var(--gray-800, #1f2937);
+  border-color: var(--gray-700, #374151);
+}
+body[class*='dark'] .pdf-thumbnail-header .badge {
+  background: var(--gray-700, #374151);
+  color: var(--gray-200);
+}
+body[class*='dark'] .canvas-container {
+  background: var(--gray-900, #111827);
+  border-color: var(--gray-700);
+}
+body[class*='dark'] .btn-rotate-thumbnail,
+body[class*='dark'] .btn-reorder-left,
+body[class*='dark'] .btn-reorder-right {
+  background: var(--gray-700, #374151);
+  border-color: var(--gray-600);
+  color: var(--gray-200);
 }

src/styles-sidebar.css

@@ -1,278 +1,523 @@
 /* Sidebar */
 .main-content {
-    display: flex;
-    flex: 1;
-    overflow: hidden;
-    min-height: 0;
+  display: flex;
+  flex: 1;
+  overflow: hidden;
+  min-height: 0;
 }
 
 .sidebar {
-    display: flex;
-    flex-shrink: 0;
-    height: 100%;
-    transition: width 0.2s ease;
+  display: flex;
+  flex-shrink: 0;
+  height: 100%;
+  transition: width 0.2s ease;
 }
 
 .sidebar.collapsed {
-    width: 48px;
+  width: 48px;
 }
 
 .sidebar:not(.collapsed) {
-    width: 328px; /* 48px icons + 280px panel */
+  width: 328px; /* 48px icons + 280px panel */
 }
 
 .sidebar-icons {
-    display: flex;
-    flex-direction: column;
-    width: 48px;
-    background: var(--gray-100, #f3f4f6);
-    border-right: 1px solid var(--gray-200, #e5e7eb);
-    padding: 8px 0;
-    gap: 4px;
-    align-items: center;
+  display: flex;
+  flex-direction: column;
+  width: 48px;
+  background: var(--gray-100, #f3f4f6);
+  border-right: 1px solid var(--gray-200, #e5e7eb);
+  padding: 8px 0;
+  gap: 4px;
+  align-items: center;
 }
 
 .sidebar-icon {
-    width: 36px;
-    height: 36px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    border: none;
-    background: transparent;
-    border-radius: 8px;
-    cursor: pointer;
-    color: var(--gray-500, #6b7280);
-    transition: all 0.15s ease;
+  width: 36px;
+  height: 36px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+  background: transparent;
+  border-radius: 8px;
+  cursor: pointer;
+  color: var(--gray-500, #6b7280);
+  transition: all 0.15s ease;
 }
 
 .sidebar-icon:hover {
-    background: var(--gray-200, #e5e7eb);
-    color: var(--gray-700, #374151);
+  background: var(--gray-200, #e5e7eb);
+  color: var(--gray-700, #374151);
 }
 
 .sidebar-icon.active {
-    background: var(--gray-200, #e5e7eb);
-    color: var(--primary-dark, #5661b3);
-    box-shadow: inset 3px 0 0 var(--primary-dark, #5661b3);
+  background: var(--gray-200, #e5e7eb);
+  color: var(--primary-dark, #5661b3);
+  box-shadow: inset 3px 0 0 var(--primary-dark, #5661b3);
 }
 
 .sidebar-icon:focus-visible {
-    outline: 2px solid var(--primary-dark, #5661b3);
-    outline-offset: 2px;
+  outline: 2px solid var(--primary-dark, #5661b3);
+  outline-offset: 2px;
 }
 
 .sidebar-panel {
-    width: 280px;
-    background: var(--gray-50, #f9fafb);
-    border-right: 1px solid var(--gray-200, #e5e7eb);
-    display: flex;
-    flex-direction: column;
-    overflow: hidden;
+  width: 280px;
+  background: var(--gray-50, #f9fafb);
+  border-right: 1px solid var(--gray-200, #e5e7eb);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
 }
 
 .sidebar.collapsed .sidebar-panel {
-    display: none;
+  display: none;
 }
 
 .sidebar-panel-header {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    padding: 12px 16px;
-    border-bottom: 1px solid var(--gray-200, #e5e7eb);
-    font-weight: 600;
-    font-size: 13px;
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-    color: var(--gray-600, #4b5563);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  border-bottom: 1px solid var(--gray-200, #e5e7eb);
+  font-weight: 600;
+  font-size: 13px;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  color: var(--gray-600, #4b5563);
 }
 
 .sidebar-panel-close {
-    background: none;
-    border: none;
-    font-size: 18px;
-    cursor: pointer;
-    color: var(--gray-400, #9ca3af);
-    padding: 0 4px;
-    border-radius: 4px;
+  background: none;
+  border: none;
+  font-size: 18px;
+  cursor: pointer;
+  color: var(--gray-400, #9ca3af);
+  padding: 0 4px;
+  border-radius: 4px;
 }
 
 .sidebar-panel-close:hover {
-    background: var(--gray-200, #e5e7eb);
-    color: var(--gray-600, #4b5563);
+  background: var(--gray-200, #e5e7eb);
+  color: var(--gray-600, #4b5563);
 }
 
 .sidebar-panel-close:focus-visible {
-    outline: 2px solid var(--primary-dark, #5661b3);
-    outline-offset: 2px;
+  outline: 2px solid var(--primary-dark, #5661b3);
+  outline-offset: 2px;
 }
 
 .sidebar-panel-content {
-    flex: 1;
-    overflow-y: auto;
-    padding: 12px;
+  flex: 1;
+  overflow-y: auto;
+  padding: 12px;
 }
 
 /* Dark theme support */
-body[class*="dark"] .sidebar-icons,
-body[class*="dark"] .sidebar-panel {
-    background: #1e1e1e;
-    border-color: #333;
+body[class*='dark'] .sidebar-icons,
+body[class*='dark'] .sidebar-panel {
+  background: #1e1e1e;
+  border-color: #333;
 }
 
-body[class*="dark"] .sidebar-icon {
-    color: #888;
+body[class*='dark'] .sidebar-icon {
+  color: #888;
 }
 
-body[class*="dark"] .sidebar-icon:hover {
-    background: #333;
-    color: #ccc;
+body[class*='dark'] .sidebar-icon:hover {
+  background: #333;
+  color: #ccc;
 }
 
-body[class*="dark"] .sidebar-icon.active {
-    background: #333;
-    color: #8b9aff;
-    box-shadow: inset 3px 0 0 #8b9aff;
+body[class*='dark'] .sidebar-icon.active {
+  background: #333;
+  color: #8b9aff;
+  box-shadow: inset 3px 0 0 #8b9aff;
 }
 
-body[class*="dark"] .sidebar-panel-header {
-    border-color: #333;
-    color: #ccc;
+body[class*='dark'] .sidebar-panel-header {
+  border-color: #333;
+  color: #ccc;
 }
 
 /* Panel list items (templates, etc.) */
 .panel-list-item {
-    padding: 10px 12px;
-    border-radius: 6px;
-    cursor: pointer;
-    margin-bottom: 4px;
+  padding: 10px 12px;
+  border-radius: 6px;
+  cursor: pointer;
+  margin-bottom: 4px;
 }
 .panel-list-item:hover {
-    background: var(--gray-200, #e5e7eb);
+  background: var(--gray-200, #e5e7eb);
 }
 .panel-list-item-title {
-    font-size: 13px;
-    font-weight: 500;
-    color: var(--gray-800, #1f2937);
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--gray-800, #1f2937);
 }
 .panel-list-item-desc {
-    font-size: 11px;
-    color: var(--gray-500, #6b7280);
-    margin-top: 2px;
+  font-size: 11px;
+  color: var(--gray-500, #6b7280);
+  margin-top: 2px;
 }
 
-body[class*="dark"] .panel-list-item:hover {
-    background: #333;
+body[class*='dark'] .panel-list-item:hover {
+  background: #333;
 }
-body[class*="dark"] .panel-list-item-title {
-    color: #ddd;
+body[class*='dark'] .panel-list-item-title {
+  color: #ddd;
 }
-body[class*="dark"] .panel-list-item-desc {
-    color: #888;
+body[class*='dark'] .panel-list-item-desc {
+  color: #888;
 }
 
 /* Explorer Panel */
 .explorer-toolbar {
-    display: flex;
-    gap: 4px;
-    margin-bottom: 8px;
+  display: flex;
+  gap: 4px;
+  margin-bottom: 8px;
 }
 .explorer-path {
-    flex: 1;
-    padding: 6px 8px;
-    border: 1px solid var(--gray-300, #d1d5db);
-    border-radius: 6px;
-    font-size: 12px;
-    background: white;
-    overflow: hidden;
-    text-overflow: ellipsis;
+  flex: 1;
+  padding: 6px 8px;
+  border: 1px solid var(--gray-300, #d1d5db);
+  border-radius: 6px;
+  font-size: 12px;
+  background: white;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
 .explorer-browse-btn {
-    border: 1px solid var(--gray-300, #d1d5db);
-    border-radius: 6px;
-    background: white;
-    cursor: pointer;
-    padding: 4px 8px;
+  border: 1px solid var(--gray-300, #d1d5db);
+  border-radius: 6px;
+  background: white;
+  cursor: pointer;
+  padding: 4px 8px;
 }
 .tree-item {
-    padding: 3px 0;
-    cursor: pointer;
-    font-size: 13px;
-    user-select: none;
+  padding: 3px 0;
+  cursor: pointer;
+  font-size: 13px;
+  user-select: none;
 }
 .tree-item:hover {
-    background: var(--gray-100, #f3f4f6);
-    border-radius: 4px;
+  background: var(--gray-100, #f3f4f6);
+  border-radius: 4px;
 }
 .tree-icon {
-    margin-right: 4px;
-    font-size: 12px;
+  margin-right: 4px;
+  font-size: 12px;
 }
 .tree-children {
-    padding-left: 16px;
+  padding-left: 16px;
 }
 .tree-folder.collapsed .tree-children {
-    display: none;
+  display: none;
 }
 .tree-name {
-    font-size: 13px;
+  font-size: 13px;
 }
 
 /* Git Panel */
-.git-section { margin-bottom: 16px; }
-.git-section-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gray-500); margin-bottom: 8px; }
-.git-file { display: flex; align-items: center; padding: 4px 6px; border-radius: 4px; font-size: 13px; gap: 6px; }
-.git-file:hover { background: var(--gray-100, #f3f4f6); }
-.git-file-status { font-weight: 700; font-family: monospace; width: 16px; text-align: center; }
-.git-file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-.git-stage-btn { border: none; background: var(--gray-200); border-radius: 4px; cursor: pointer; font-size: 14px; width: 22px; height: 22px; }
-.git-commit-input { width: 100%; padding: 8px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 13px; font-family: inherit; resize: vertical; box-sizing: border-box; }
-.git-commit-btn { width: 100%; margin-top: 8px; padding: 8px; background: var(--primary-dark, #5661b3); color: white; border: none; border-radius: 6px; font-size: 13px; cursor: pointer; }
-.git-commit-btn:hover { opacity: 0.9; }
-.git-log-entry { padding: 6px 0; border-bottom: 1px solid var(--gray-100); }
-.git-log-msg { font-size: 13px; }
-.git-log-meta { font-size: 11px; color: var(--gray-500); margin-top: 2px; }
-.git-info { font-size: 13px; color: var(--gray-500); padding: 8px 0; }
-.git-loading { font-size: 13px; color: var(--gray-400); }
+.git-section {
+  margin-bottom: 16px;
+}
+.git-section-title {
+  font-size: 11px;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  color: var(--gray-500);
+  margin-bottom: 8px;
+}
+.git-file {
+  display: flex;
+  align-items: center;
+  padding: 4px 6px;
+  border-radius: 4px;
+  font-size: 13px;
+  gap: 6px;
+}
+.git-file:hover {
+  background: var(--gray-100, #f3f4f6);
+}
+.git-file-status {
+  font-weight: 700;
+  font-family: monospace;
+  width: 16px;
+  text-align: center;
+}
+.git-file-name {
+  flex: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.git-stage-btn {
+  border: none;
+  background: var(--gray-200);
+  border-radius: 4px;
+  cursor: pointer;
+  font-size: 14px;
+  width: 22px;
+  height: 22px;
+}
+.git-commit-input {
+  width: 100%;
+  padding: 8px;
+  border: 1px solid var(--gray-300);
+  border-radius: 6px;
+  font-size: 13px;
+  font-family: inherit;
+  resize: vertical;
+  box-sizing: border-box;
+}
+.git-commit-btn {
+  width: 100%;
+  margin-top: 8px;
+  padding: 8px;
+  background: var(--primary-dark, #5661b3);
+  color: white;
+  border: none;
+  border-radius: 6px;
+  font-size: 13px;
+  cursor: pointer;
+}
+.git-commit-btn:hover {
+  opacity: 0.9;
+}
+.git-log-entry {
+  padding: 6px 0;
+  border-bottom: 1px solid var(--gray-100);
+}
+.git-log-msg {
+  font-size: 13px;
+}
+.git-log-meta {
+  font-size: 11px;
+  color: var(--gray-500);
+  margin-top: 2px;
+}
+.git-info {
+  font-size: 13px;
+  color: var(--gray-500);
+  padding: 8px 0;
+}
+.git-loading {
+  font-size: 13px;
+  color: var(--gray-400);
+}
 
 /* Snippets Panel */
-.snippets-toolbar { display: flex; gap: 4px; margin-bottom: 8px; }
-.snippets-search { flex: 1; padding: 6px 10px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 13px; }
-.snippets-add-btn { width: 32px; border: 1px solid var(--gray-300); border-radius: 6px; background: white; font-size: 18px; cursor: pointer; }
-.snippet-item { padding: 8px; border: 1px solid var(--gray-200); border-radius: 6px; margin-bottom: 6px; }
-.snippet-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
-.snippet-name { font-size: 13px; font-weight: 500; }
-.snippet-lang { font-size: 11px; background: var(--gray-100); padding: 2px 6px; border-radius: 4px; color: var(--gray-500); }
-.snippet-preview { font-size: 12px; background: var(--gray-50); padding: 6px; border-radius: 4px; margin: 4px 0; overflow: hidden; max-height: 60px; }
-.snippet-preview code { font-family: 'JetBrains Mono', monospace; }
-.snippet-actions { display: flex; gap: 4px; }
-.snippet-insert { font-size: 12px; padding: 4px 8px; border: 1px solid var(--gray-300); border-radius: 4px; background: white; cursor: pointer; }
-.snippet-delete { font-size: 14px; padding: 4px 8px; border: 1px solid var(--gray-300); border-radius: 4px; background: white; cursor: pointer; color: #ef4444; }
+.snippets-toolbar {
+  display: flex;
+  gap: 4px;
+  margin-bottom: 8px;
+}
+.snippets-search {
+  flex: 1;
+  padding: 6px 10px;
+  border: 1px solid var(--gray-300);
+  border-radius: 6px;
+  font-size: 13px;
+}
+.snippets-add-btn {
+  width: 32px;
+  border: 1px solid var(--gray-300);
+  border-radius: 6px;
+  background: white;
+  font-size: 18px;
+  cursor: pointer;
+}
+.snippet-item {
+  padding: 8px;
+  border: 1px solid var(--gray-200);
+  border-radius: 6px;
+  margin-bottom: 6px;
+}
+.snippet-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 4px;
+}
+.snippet-name {
+  font-size: 13px;
+  font-weight: 500;
+}
+.snippet-lang {
+  font-size: 11px;
+  background: var(--gray-100);
+  padding: 2px 6px;
+  border-radius: 4px;
+  color: var(--gray-500);
+}
+.snippet-preview {
+  font-size: 12px;
+  background: var(--gray-50);
+  padding: 6px;
+  border-radius: 4px;
+  margin: 4px 0;
+  overflow: hidden;
+  max-height: 60px;
+}
+.snippet-preview code {
+  font-family: 'JetBrains Mono', monospace;
+}
+.snippet-actions {
+  display: flex;
+  gap: 4px;
+}
+.snippet-insert {
+  font-size: 12px;
+  padding: 4px 8px;
+  border: 1px solid var(--gray-300);
+  border-radius: 4px;
+  background: white;
+  cursor: pointer;
+}
+.snippet-delete {
+  font-size: 14px;
+  padding: 4px 8px;
+  border: 1px solid var(--gray-300);
+  border-radius: 4px;
+  background: white;
+  cursor: pointer;
+  color: #ef4444;
+}
 
 /* Dark theme for sidebar panels */
-body[class*="dark"] .explorer-path,
-body[class*="dark"] .explorer-browse-btn,
-body[class*="dark"] .snippets-search,
-body[class*="dark"] .snippets-add-btn,
-body[class*="dark"] .snippet-insert,
-body[class*="dark"] .snippet-delete {
-    background: #2d2d2d;
-    border-color: #444;
-    color: #ccc;
+body[class*='dark'] .explorer-path,
+body[class*='dark'] .explorer-browse-btn,
+body[class*='dark'] .snippets-search,
+body[class*='dark'] .snippets-add-btn,
+body[class*='dark'] .snippet-insert,
+body[class*='dark'] .snippet-delete {
+  background: #2d2d2d;
+  border-color: #444;
+  color: #ccc;
 }
-body[class*="dark"] .git-commit-input {
-    background: #2d2d2d;
-    border-color: #444;
-    color: #ccc;
+body[class*='dark'] .git-commit-input {
+  background: #2d2d2d;
+  border-color: #444;
+  color: #ccc;
 }
-body[class*="dark"] .snippet-item {
-    border-color: #444;
+body[class*='dark'] .snippet-item {
+  border-color: #444;
 }
-body[class*="dark"] .snippet-preview {
-    background: #2d2d2d;
+body[class*='dark'] .snippet-preview {
+  background: #2d2d2d;
 }
-body[class*="dark"] .tree-item:hover,
-body[class*="dark"] .git-file:hover {
-    background: #333;
+body[class*='dark'] .tree-item:hover,
+body[class*='dark'] .git-file:hover {
+  background: #333;
+}
+
+/* Outline Panel */
+.outline-panel {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+}
+.outline-list {
+  flex: 1;
+  overflow-y: auto;
+  padding: 4px 0;
+}
+.outline-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 4px 12px;
+  cursor: pointer;
+  font-size: 13px;
+  color: var(--text-secondary, #6b7280);
+  transition:
+    background 0.15s,
+    color 0.15s;
+  border-left: 2px solid transparent;
+}
+.outline-item:hover {
+  background: var(--bg-tertiary, #f3f4f6);
+  color: var(--text-primary, #1f2937);
+}
+.outline-item.active {
+  color: var(--accent-blue, #3b82f6);
+  background: rgba(59, 130, 246, 0.08);
+  border-left-color: var(--accent-blue, #3b82f6);
+  font-weight: 600;
+}
+.outline-level-1 {
+  padding-left: 12px;
+}
+.outline-level-2 {
+  padding-left: 24px;
+}
+.outline-level-3 {
+  padding-left: 36px;
+}
+.outline-level-4 {
+  padding-left: 48px;
+}
+.outline-level-5 {
+  padding-left: 56px;
+}
+.outline-level-6 {
+  padding-left: 64px;
+}
+.outline-text {
+  flex: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+.outline-badge {
+  font-size: 10px;
+  opacity: 0.5;
+  margin-left: 8px;
+  flex-shrink: 0;
+}
+.outline-empty {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  padding: 32px 16px;
+  color: var(--text-muted, #9ca3af);
+  text-align: center;
+}
+.outline-empty p {
+  margin: 4px 0;
+}
+.outline-hint {
+  font-family: monospace;
+  font-size: 12px;
+  opacity: 0.7;
+}
+.outline-footer {
+  padding: 8px 12px;
+  border-top: 1px solid var(--border-color, #e5e7eb);
+  font-size: 11px;
+  color: var(--text-muted, #9ca3af);
+}
+
+/* Outline dark mode */
+body[class*='dark'] .outline-item {
+  color: #9ca3af;
+}
+body[class*='dark'] .outline-item:hover {
+  background: #374151;
+  color: #e5e7eb;
+}
+body[class*='dark'] .outline-item.active {
+  color: #8b9aff;
+  background: rgba(139, 154, 255, 0.1);
+  border-left-color: #8b9aff;
+}
+body[class*='dark'] .outline-empty {
+  color: #6b7280;
+}
+body[class*='dark'] .outline-footer {
+  border-color: #333;
+  color: #6b7280;
 }

src/styles-welcome.css

@@ -1,24 +1,121 @@
-.welcome-container { padding: 40px; max-width: 900px; margin: 0 auto; }
-.welcome-hero { text-align: center; margin-bottom: 40px; }
-.welcome-title { font-size: 32px; font-weight: 700; color: var(--gray-800, #1f2937); }
-.welcome-version { font-size: 14px; color: var(--primary-dark, #5661b3); margin-top: 4px; font-weight: 500; }
-.welcome-subtitle { font-size: 16px; color: var(--gray-500, #6b7280); margin-top: 8px; }
-.welcome-grid { display: grid; gap: 32px; }
-.welcome-section h2 { font-size: 18px; margin-bottom: 16px; color: var(--gray-700, #374151); }
-.welcome-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
-.welcome-card { padding: 20px; border: 1px solid var(--gray-200, #e5e7eb); border-radius: 12px; cursor: pointer; text-align: center; transition: all 0.2s; }
-.welcome-card:hover { border-color: var(--primary-dark, #5661b3); box-shadow: 0 4px 12px rgba(0,0,0,0.08); transform: translateY(-2px); }
-.welcome-card-icon { font-size: 28px; margin-bottom: 8px; }
-.welcome-card h3 { font-size: 15px; margin-bottom: 4px; }
-.welcome-card p { font-size: 13px; color: var(--gray-500); }
-.welcome-card kbd { display: inline-block; margin-top: 8px; padding: 2px 8px; background: var(--gray-100); border: 1px solid var(--gray-300); border-radius: 4px; font-size: 12px; font-family: 'JetBrains Mono', monospace; }
-.welcome-features { list-style: none; padding: 0; }
-.welcome-features li { padding: 6px 0; font-size: 14px; border-bottom: 1px solid var(--gray-100, #f3f4f6); }
-.welcome-features strong { color: var(--primary-dark, #5661b3); }
-.welcome-recent-item { padding: 8px 12px; border-radius: 6px; cursor: pointer; margin-bottom: 4px; }
-.welcome-recent-item:hover { background: var(--gray-100); }
-.welcome-recent-name { font-size: 14px; font-weight: 500; display: block; }
-.welcome-recent-path { font-size: 12px; color: var(--gray-500); display: block; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; }
-.welcome-muted { color: var(--gray-400); font-size: 14px; }
-.welcome-footer { margin-top: 32px; text-align: center; }
-.welcome-checkbox { font-size: 13px; color: var(--gray-500); cursor: pointer; }
+.welcome-container {
+  padding: 40px;
+  max-width: 900px;
+  margin: 0 auto;
+}
+.welcome-hero {
+  text-align: center;
+  margin-bottom: 40px;
+}
+.welcome-title {
+  font-size: 32px;
+  font-weight: 700;
+  color: var(--gray-800, #1f2937);
+}
+.welcome-version {
+  font-size: 14px;
+  color: var(--primary-dark, #5661b3);
+  margin-top: 4px;
+  font-weight: 500;
+}
+.welcome-subtitle {
+  font-size: 16px;
+  color: var(--gray-500, #6b7280);
+  margin-top: 8px;
+}
+.welcome-grid {
+  display: grid;
+  gap: 32px;
+}
+.welcome-section h2 {
+  font-size: 18px;
+  margin-bottom: 16px;
+  color: var(--gray-700, #374151);
+}
+.welcome-cards {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  gap: 12px;
+}
+.welcome-card {
+  padding: 20px;
+  border: 1px solid var(--gray-200, #e5e7eb);
+  border-radius: 12px;
+  cursor: pointer;
+  text-align: center;
+  transition: all 0.2s;
+}
+.welcome-card:hover {
+  border-color: var(--primary-dark, #5661b3);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
+  transform: translateY(-2px);
+}
+.welcome-card-icon {
+  font-size: 28px;
+  margin-bottom: 8px;
+}
+.welcome-card h3 {
+  font-size: 15px;
+  margin-bottom: 4px;
+}
+.welcome-card p {
+  font-size: 13px;
+  color: var(--gray-500);
+}
+.welcome-card kbd {
+  display: inline-block;
+  margin-top: 8px;
+  padding: 2px 8px;
+  background: var(--gray-100);
+  border: 1px solid var(--gray-300);
+  border-radius: 4px;
+  font-size: 12px;
+  font-family: 'JetBrains Mono', monospace;
+}
+.welcome-features {
+  list-style: none;
+  padding: 0;
+}
+.welcome-features li {
+  padding: 6px 0;
+  font-size: 14px;
+  border-bottom: 1px solid var(--gray-100, #f3f4f6);
+}
+.welcome-features strong {
+  color: var(--primary-dark, #5661b3);
+}
+.welcome-recent-item {
+  padding: 8px 12px;
+  border-radius: 6px;
+  cursor: pointer;
+  margin-bottom: 4px;
+}
+.welcome-recent-item:hover {
+  background: var(--gray-100);
+}
+.welcome-recent-name {
+  font-size: 14px;
+  font-weight: 500;
+  display: block;
+}
+.welcome-recent-path {
+  font-size: 12px;
+  color: var(--gray-500);
+  display: block;
+  margin-top: 2px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+.welcome-muted {
+  color: var(--gray-400);
+  font-size: 14px;
+}
+.welcome-footer {
+  margin-top: 32px;
+  text-align: center;
+}
+.welcome-checkbox {
+  font-size: 13px;
+  color: var(--gray-500);
+  cursor: pointer;
+}

src/styles-zen.css

@@ -0,0 +1,102 @@
+/* Zen Mode — Distraction-free writing styles */
+
+/* Hide chrome elements */
+body.zen-mode .app-header,
+body.zen-mode .tab-bar,
+body.zen-mode .toolbar,
+body.zen-mode .status-bar,
+body.zen-mode .sidebar,
+body.zen-mode .breadcrumb-bar {
+  display: none !important;
+}
+
+/* Main content fills viewport */
+body.zen-mode .main-content {
+  height: 100vh;
+  overflow: hidden;
+}
+
+/* Editor container takes full width */
+body.zen-mode .editor-container {
+  width: 100% !important;
+  height: 100% !important;
+}
+
+/* Hide preview panes */
+body.zen-mode .preview-container,
+body.zen-mode .preview-pane,
+body.zen-mode .pane-resizer {
+  display: none !important;
+}
+
+/* Center and style editor content for comfortable reading width */
+body.zen-mode .cm-content {
+  max-width: 700px;
+  margin: 0 auto;
+  font-size: 18px;
+  line-height: 1.8;
+  padding-top: 80px;
+}
+
+body.zen-mode .cm-line {
+  padding: 4px 0;
+}
+
+body.zen-mode .editor-wrapper {
+  display: flex;
+  justify-content: center;
+}
+
+/* Floating HUD pill */
+.zen-hud {
+  position: fixed;
+  bottom: 24px;
+  left: 50%;
+  transform: translateX(-50%);
+  background: rgba(0, 0, 0, 0.6);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+  color: rgba(255, 255, 255, 0.8);
+  padding: 10px 24px;
+  border-radius: 24px;
+  font-size: 13px;
+  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
+  z-index: 9999;
+  pointer-events: none;
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  transition: opacity 0.3s ease;
+}
+
+.zen-hud-stat {
+  opacity: 0.7;
+}
+
+.zen-hud-sep {
+  opacity: 0.3;
+  margin: 0 4px;
+}
+
+/* Word goal progress bar */
+.zen-progress-container {
+  width: 120px;
+  height: 4px;
+  background: rgba(255, 255, 255, 0.15);
+  border-radius: 2px;
+  margin-top: 8px;
+  overflow: hidden;
+  display: none;
+}
+
+.zen-progress-bar {
+  height: 100%;
+  background: rgba(255, 178, 70, 0.85);
+  border-radius: 2px;
+  transition: width 0.3s ease;
+}
+
+/* Dark mode — HUD stays dark in both themes */
+body[class*='dark'].zen-mode .zen-hud {
+  background: rgba(0, 0, 0, 0.7);
+}

src/styles/modal.css

@@ -1,7 +1,7 @@
 /**
  * Modal System Styles
  * Unified modal components with glassmorphism backdrop
- * @version 4.0.0
+ * @version 4.1.0
  */
 
 /* ============================================
@@ -9,13 +9,13 @@
  * ============================================ */
 
 .modal-backdrop {
-    position: fixed;
-    inset: 0;
-    background: rgba(0, 0, 0, 0.4);
-    backdrop-filter: blur(4px);
-    -webkit-backdrop-filter: blur(4px);
-    z-index: 0;
-    cursor: pointer;
+  position: fixed;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.4);
+  backdrop-filter: blur(4px);
+  -webkit-backdrop-filter: blur(4px);
+  z-index: 0;
+  cursor: pointer;
 }
 
 /* ============================================
@@ -23,22 +23,23 @@
  * ============================================ */
 
 .modal {
-    position: fixed;
-    inset: 0;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    z-index: calc(var(--z-modal, 200) + 1);
-    opacity: 0;
-    visibility: hidden;
-    transition: opacity var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1)),
-                visibility var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
-    padding: var(--spacing-4, 1rem);
+  position: fixed;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: calc(var(--z-modal, 200) + 1);
+  opacity: 0;
+  visibility: hidden;
+  transition:
+    opacity var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1)),
+    visibility var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
+  padding: var(--spacing-4, 1rem);
 }
 
 .modal.open {
-    opacity: 1;
-    visibility: visible;
+  opacity: 1;
+  visibility: visible;
 }
 
 /* ============================================
@@ -46,23 +47,23 @@
  * ============================================ */
 
 .modal-content {
-    position: relative;
-    z-index: 1;
-    width: 100%;
-    background: hsl(var(--background, 0 0% 100%));
-    border-radius: var(--radius-lg, 0.5rem);
-    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1));
-    max-width: 90vw;
-    max-height: 90vh;
-    overflow: hidden;
-    display: flex;
-    flex-direction: column;
-    transform: scale(0.95);
-    transition: transform var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
+  position: relative;
+  z-index: 1;
+  width: 100%;
+  background: hsl(var(--background, 0 0% 100%));
+  border-radius: var(--radius-lg, 0.5rem);
+  box-shadow: var(--shadow-xl, 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1));
+  max-width: 90vw;
+  max-height: 90vh;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+  transform: scale(0.95);
+  transition: transform var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
 }
 
 .modal.open .modal-content {
-    transform: scale(1);
+  transform: scale(1);
 }
 
 /* ============================================
@@ -70,19 +71,19 @@
  * ============================================ */
 
 .modal-header {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
-    border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
-    background: hsl(var(--muted, 210 40% 96.1%));
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
+  border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
+  background: hsl(var(--muted, 210 40% 96.1%));
 }
 
 .modal-header h3 {
-    margin: 0;
-    font-size: var(--text-lg, 1.125rem);
-    font-weight: var(--font-semibold, 600);
-    color: hsl(var(--foreground, 222.2 84% 4.9%));
+  margin: 0;
+  font-size: var(--text-lg, 1.125rem);
+  font-weight: var(--font-semibold, 600);
+  color: hsl(var(--foreground, 222.2 84% 4.9%));
 }
 
 /* ============================================
@@ -90,31 +91,32 @@
  * ============================================ */
 
 .modal-close {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    width: 32px;
-    height: 32px;
-    padding: 0;
-    border: none;
-    border-radius: var(--radius, 0.5rem);
-    background: transparent;
-    color: hsl(var(--muted-foreground, 215.4 16.3% 46.9%));
-    font-size: 24px;
-    line-height: 1;
-    cursor: pointer;
-    transition: background-color var(--transition-fast, 150ms),
-                color var(--transition-fast, 150ms);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  padding: 0;
+  border: none;
+  border-radius: var(--radius, 0.5rem);
+  background: transparent;
+  color: hsl(var(--muted-foreground, 215.4 16.3% 46.9%));
+  font-size: 24px;
+  line-height: 1;
+  cursor: pointer;
+  transition:
+    background-color var(--transition-fast, 150ms),
+    color var(--transition-fast, 150ms);
 }
 
 .modal-close:hover {
-    background: hsl(var(--accent, 210 40% 96.1%));
-    color: hsl(var(--foreground, 222.2 84% 4.9%));
+  background: hsl(var(--accent, 210 40% 96.1%));
+  color: hsl(var(--foreground, 222.2 84% 4.9%));
 }
 
 .modal-close:focus-visible {
-    outline: 2px solid hsl(var(--ring, 227 44% 52%));
-    outline-offset: 2px;
+  outline: 2px solid hsl(var(--ring, 227 44% 52%));
+  outline-offset: 2px;
 }
 
 /* ============================================
@@ -122,9 +124,9 @@
  * ============================================ */
 
 .modal-body {
-    padding: var(--spacing-6, 1.5rem);
-    overflow-y: auto;
-    flex: 1;
+  padding: var(--spacing-6, 1.5rem);
+  overflow-y: auto;
+  flex: 1;
 }
 
 /* ============================================
@@ -132,19 +134,19 @@
  * ============================================ */
 
 .modal-footer {
-    display: flex;
-    justify-content: flex-end;
-    gap: var(--spacing-3, 0.75rem);
-    padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
-    border-top: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
-    background: hsl(var(--muted, 210 40% 96.1%));
+  display: flex;
+  justify-content: flex-end;
+  gap: var(--spacing-3, 0.75rem);
+  padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
+  border-top: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
+  background: hsl(var(--muted, 210 40% 96.1%));
 }
 
 .modal-footer .btn {
-    min-width: 80px;
-    /* styles-modern.css sets flex:1 on .btn-primary/.btn-secondary globally
+  min-width: 80px;
+  /* styles-modern.css sets flex:1 on .btn-primary/.btn-secondary globally
      * which causes footer buttons to stretch to full width. Override here. */
-    flex: none;
+  flex: none;
 }
 
 /* ============================================
@@ -152,60 +154,60 @@
  * ============================================ */
 
 .modal-body .form-row {
-    display: flex;
-    align-items: center;
-    gap: var(--spacing-3, 0.75rem);
-    margin-bottom: var(--spacing-3, 0.75rem);
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-3, 0.75rem);
+  margin-bottom: var(--spacing-3, 0.75rem);
 }
 
 .modal-body .form-row label {
-    min-width: 100px;
-    font-size: var(--text-sm, 0.875rem);
-    color: hsl(var(--foreground, 222.2 84% 4.9%));
+  min-width: 100px;
+  font-size: var(--text-sm, 0.875rem);
+  color: hsl(var(--foreground, 222.2 84% 4.9%));
 }
 
 .modal-body .form-row input,
 .modal-body .form-row select {
-    flex: 1;
-    padding: var(--spacing-2, 0.5rem) var(--spacing-3, 0.75rem);
-    border: 1px solid hsl(var(--input, 214.3 31.8% 91.4%));
-    border-radius: var(--radius, 0.5rem);
-    font-size: var(--text-sm, 0.875rem);
-    background: hsl(var(--background, 0 0% 100%));
-    color: hsl(var(--foreground, 222.2 84% 4.9%));
+  flex: 1;
+  padding: var(--spacing-2, 0.5rem) var(--spacing-3, 0.75rem);
+  border: 1px solid hsl(var(--input, 214.3 31.8% 91.4%));
+  border-radius: var(--radius, 0.5rem);
+  font-size: var(--text-sm, 0.875rem);
+  background: hsl(var(--background, 0 0% 100%));
+  color: hsl(var(--foreground, 222.2 84% 4.9%));
 }
 
 .modal-body .form-row input:focus,
 .modal-body .form-row select:focus {
-    outline: 2px solid hsl(var(--ring, 227 44% 52%));
-    outline-offset: 1px;
+  outline: 2px solid hsl(var(--ring, 227 44% 52%));
+  outline-offset: 1px;
 }
 
 .modal-body .export-section {
-    margin-bottom: var(--spacing-4, 1rem);
-    padding-bottom: var(--spacing-4, 1rem);
-    border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
+  margin-bottom: var(--spacing-4, 1rem);
+  padding-bottom: var(--spacing-4, 1rem);
+  border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
 }
 
 .modal-body .export-section:last-child {
-    border-bottom: none;
-    margin-bottom: 0;
+  border-bottom: none;
+  margin-bottom: 0;
 }
 
 .modal-body .export-section label {
-    display: block;
-    font-weight: var(--font-medium, 500);
-    margin-bottom: var(--spacing-2, 0.5rem);
-    color: hsl(var(--foreground, 222.2 84% 4.9%));
+  display: block;
+  font-weight: var(--font-medium, 500);
+  margin-bottom: var(--spacing-2, 0.5rem);
+  color: hsl(var(--foreground, 222.2 84% 4.9%));
 }
 
 .modal-body .checkbox-group label {
-    display: flex;
-    align-items: center;
-    gap: var(--spacing-2, 0.5rem);
-    margin-bottom: var(--spacing-2, 0.5rem);
-    font-weight: var(--font-normal, 400);
-    cursor: pointer;
+  display: flex;
+  align-items: center;
+  gap: var(--spacing-2, 0.5rem);
+  margin-bottom: var(--spacing-2, 0.5rem);
+  font-weight: var(--font-normal, 400);
+  cursor: pointer;
 }
 
 /* ============================================
@@ -213,19 +215,19 @@
  * ============================================ */
 
 .modal-content.small {
-    max-width: 400px;
-    min-width: 320px;
+  max-width: 400px;
+  min-width: 320px;
 }
 
 .modal-content.large {
-    max-width: 800px;
-    min-width: 560px;
+  max-width: 800px;
+  min-width: 560px;
 }
 
 .modal-content.full {
-    max-width: 95vw;
-    max-height: 95vh;
-    min-width: min(95vw, 700px);
+  max-width: 95vw;
+  max-height: 95vh;
+  min-width: min(95vw, 700px);
 }
 
 /* ============================================
@@ -233,16 +235,18 @@
  * ============================================ */
 
 .dark .modal-content,
-[data-theme="dark"] .modal-content {
-    background: hsl(var(--background));
-    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.3);
+[data-theme='dark'] .modal-content {
+  background: hsl(var(--background));
+  box-shadow:
+    0 20px 25px -5px rgb(0 0 0 / 0.4),
+    0 8px 10px -6px rgb(0 0 0 / 0.3);
 }
 
 .dark .modal-header,
 .dark .modal-footer,
-[data-theme="dark"] .modal-header,
-[data-theme="dark"] .modal-footer {
-    background: hsl(var(--muted));
+[data-theme='dark'] .modal-header,
+[data-theme='dark'] .modal-footer {
+  background: hsl(var(--muted));
 }
 
 /* ============================================
@@ -250,10 +254,10 @@
  * ============================================ */
 
 @media (prefers-reduced-motion: reduce) {
-    .modal,
-    .modal-content {
-        transition: none;
-    }
+  .modal,
+  .modal-content {
+    transition: none;
+  }
 }
 
 /* ============================================
@@ -261,5 +265,5 @@
  * ============================================ */
 
 .modal.hidden {
-    display: none;
+  display: none;
 }

src/styles/tokens.css

@@ -148,7 +148,7 @@
  * ============================================ */
 
 .dark,
-[data-theme="dark"] {
+[data-theme='dark'] {
   /* Background and foreground */
   --background: 222.2 84% 4.9%;
   --foreground: 210 40% 98%;
@@ -205,24 +205,56 @@
  * Semantic Color Classes
  * ============================================ */
 
-.bg-background { background-color: hsl(var(--background)); }
-.bg-foreground { background-color: hsl(var(--foreground)); }
-.bg-card { background-color: hsl(var(--card)); }
-.bg-primary { background-color: hsl(var(--primary)); }
-.bg-secondary { background-color: hsl(var(--secondary)); }
-.bg-muted { background-color: hsl(var(--muted)); }
-.bg-accent { background-color: hsl(var(--accent)); }
-.bg-destructive { background-color: hsl(var(--destructive)); }
+.bg-background {
+  background-color: hsl(var(--background));
+}
+.bg-foreground {
+  background-color: hsl(var(--foreground));
+}
+.bg-card {
+  background-color: hsl(var(--card));
+}
+.bg-primary {
+  background-color: hsl(var(--primary));
+}
+.bg-secondary {
+  background-color: hsl(var(--secondary));
+}
+.bg-muted {
+  background-color: hsl(var(--muted));
+}
+.bg-accent {
+  background-color: hsl(var(--accent));
+}
+.bg-destructive {
+  background-color: hsl(var(--destructive));
+}
 
-.text-foreground { color: hsl(var(--foreground)); }
-.text-primary { color: hsl(var(--primary)); }
-.text-secondary { color: hsl(var(--secondary-foreground)); }
-.text-muted-foreground { color: hsl(var(--muted-foreground)); }
-.text-destructive { color: hsl(var(--destructive)); }
+.text-foreground {
+  color: hsl(var(--foreground));
+}
+.text-primary {
+  color: hsl(var(--primary));
+}
+.text-secondary {
+  color: hsl(var(--secondary-foreground));
+}
+.text-muted-foreground {
+  color: hsl(var(--muted-foreground));
+}
+.text-destructive {
+  color: hsl(var(--destructive));
+}
 
-.border-border { border-color: hsl(var(--border)); }
-.border-primary { border-color: hsl(var(--primary)); }
-.border-input { border-color: hsl(var(--input)); }
+.border-border {
+  border-color: hsl(var(--border));
+}
+.border-primary {
+  border-color: hsl(var(--primary));
+}
+.border-input {
+  border-color: hsl(var(--input));
+}
 
 /* ============================================
  * Utility Classes

src/templates/api-docs.md

@@ -22,10 +22,10 @@ GET /resources
 
 **Query Parameters:**
 
-| Parameter | Type | Required | Description |
-|-----------|------|----------|-------------|
-| page | integer | No | Page number (default: 1) |
-| limit | integer | No | Items per page (default: 20) |
+| Parameter | Type    | Required | Description                  |
+| --------- | ------- | -------- | ---------------------------- |
+| page      | integer | No       | Page number (default: 1)     |
+| limit     | integer | No       | Items per page (default: 20) |
 
 **Response:**
 
@@ -82,9 +82,9 @@ DELETE /resources/:id
 
 ## Error Codes
 
-| Code | Description |
-|------|-------------|
-| 400 | Bad Request |
-| 401 | Unauthorized |
-| 404 | Not Found |
-| 500 | Internal Server Error |
+| Code | Description           |
+| ---- | --------------------- |
+| 400  | Bad Request           |
+| 401  | Unauthorized          |
+| 404  | Not Found             |
+| 500  | Internal Server Error |

src/templates/blog-post.md

@@ -1,6 +1,6 @@
 ---
 title: Blog Post Title
-date: {{DATE}}
+date: { { DATE } }
 author: Your Name
 tags: []
 ---

src/templates/changelog.md

@@ -3,18 +3,23 @@
 ## [Unreleased]
 
 ### Added
+
 - New feature
 
 ### Changed
+
 - Updated feature
 
 ### Fixed
+
 - Bug fix
 
 ### Removed
+
 - Removed feature
 
 ## [1.0.0] - {{DATE}}
 
 ### Added
+
 - Initial release

src/templates/comparison.md

@@ -9,50 +9,54 @@ Brief description of what is being compared and why.
 
 ## Feature Comparison
 
-| Feature | Option A | Option B |
-|---------|----------|----------|
-| Feature 1 | Yes | Yes |
-| Feature 2 | Yes | No |
-| Feature 3 | No | Yes |
-| Feature 4 | Partial | Yes |
+| Feature   | Option A | Option B |
+| --------- | -------- | -------- |
+| Feature 1 | Yes      | Yes      |
+| Feature 2 | Yes      | No       |
+| Feature 3 | No       | Yes      |
+| Feature 4 | Partial  | Yes      |
 
 ## Pricing
 
-| Plan | Option A | Option B |
-|------|----------|----------|
-| Free | Limited | Limited |
-| Pro | $10/mo | $15/mo |
-| Enterprise | Custom | Custom |
+| Plan       | Option A | Option B |
+| ---------- | -------- | -------- |
+| Free       | Limited  | Limited  |
+| Pro        | $10/mo   | $15/mo   |
+| Enterprise | Custom   | Custom   |
 
 ## Pros and Cons
 
 ### Option A
 
 **Pros:**
+
 - Pro 1
 - Pro 2
 
 **Cons:**
+
 - Con 1
 - Con 2
 
 ### Option B
 
 **Pros:**
+
 - Pro 1
 - Pro 2
 
 **Cons:**
+
 - Con 1
 - Con 2
 
 ## Performance
 
-| Metric | Option A | Option B |
-|--------|----------|----------|
-| Speed | Fast | Moderate |
-| Memory | Low | Medium |
-| Scalability | Good | Excellent |
+| Metric      | Option A | Option B  |
+| ----------- | -------- | --------- |
+| Speed       | Fast     | Moderate  |
+| Memory      | Low      | Medium    |
+| Scalability | Good     | Excellent |
 
 ## Recommendation
 

src/templates/meeting-notes.md

@@ -2,6 +2,7 @@
 
 **Date:** {{DATE}}
 **Attendees:**
+
 - Name 1
 - Name 2
 

src/templates/project-plan.md

@@ -12,43 +12,48 @@
 ## Scope
 
 ### In Scope
+
 - Item 1
 - Item 2
 
 ### Out of Scope
+
 - Item 1
 
 ## Milestones
 
-| Milestone | Target Date | Status |
-|-----------|-------------|--------|
-| Kickoff | {{DATE}} | Not Started |
-| MVP | TBD | Not Started |
-| Launch | TBD | Not Started |
+| Milestone | Target Date | Status      |
+| --------- | ----------- | ----------- |
+| Kickoff   | {{DATE}}    | Not Started |
+| MVP       | TBD         | Not Started |
+| Launch    | TBD         | Not Started |
 
 ## Resources
 
-| Role | Person | Allocation |
-|------|--------|------------|
-| Lead | Name | 100% |
-| Developer | Name | 50% |
+| Role      | Person | Allocation |
+| --------- | ------ | ---------- |
+| Lead      | Name   | 100%       |
+| Developer | Name   | 50%        |
 
 ## Risks
 
-| Risk | Impact | Likelihood | Mitigation |
-|------|--------|------------|------------|
-| Risk 1 | High | Medium | Plan |
+| Risk   | Impact | Likelihood | Mitigation |
+| ------ | ------ | ---------- | ---------- |
+| Risk 1 | High   | Medium     | Plan       |
 
 ## Timeline
 
 ### Phase 1: Planning
+
 - [ ] Define requirements
 - [ ] Create design documents
 
 ### Phase 2: Development
+
 - [ ] Implement core features
 - [ ] Write tests
 
 ### Phase 3: Launch
+
 - [ ] Deploy to production
 - [ ] Monitor and iterate

src/templates/readme.md

@@ -21,9 +21,9 @@ const project = require('project-name');
 
 ## Configuration
 
-| Option | Default | Description |
-|--------|---------|-------------|
-| option1 | true | Description |
+| Option  | Default | Description |
+| ------- | ------- | ----------- |
+| option1 | true    | Description |
 
 ## Contributing
 

src/templates/technical-spec.md

@@ -12,10 +12,12 @@ Brief description of what this feature does.
 ## Requirements
 
 ### Functional Requirements
+
 1. Requirement 1
 2. Requirement 2
 
 ### Non-Functional Requirements
+
 1. Performance requirement
 2. Security requirement
 
@@ -27,9 +29,9 @@ Describe the technical approach.
 
 ### Endpoints
 
-| Method | Path | Description |
-|--------|------|-------------|
-| GET | /api/resource | Get resource |
+| Method | Path          | Description  |
+| ------ | ------------- | ------------ |
+| GET    | /api/resource | Get resource |
 
 ## Testing Strategy
 
@@ -37,6 +39,6 @@ Describe how this will be tested.
 
 ## Timeline
 
-| Phase | Duration | Deliverables |
-|-------|----------|-------------|
-| Phase 1 | 1 week | Core implementation |
+| Phase   | Duration | Deliverables        |
+| ------- | -------- | ------------------- |
+| Phase 1 | 1 week   | Core implementation |

src/templates/tutorial.md

@@ -42,7 +42,7 @@ Walk through the implementation.
 ```javascript
 // Example code
 function example() {
-    return 'Hello';
+  return 'Hello';
 }
 ```
 
@@ -53,10 +53,12 @@ How to verify everything works.
 ## Common Issues
 
 ### Issue 1
+
 **Problem:** Description of the problem.
 **Solution:** How to fix it.
 
 ### Issue 2
+
 **Problem:** Description of the problem.
 **Solution:** How to fix it.
 

src/utils/ModalManager.js

@@ -1,245 +1,246 @@
 /**
  * ModalManager - Unified modal system with accessibility support
- * @version 4.0.0
+ * @version 4.4.5
  */
 class ModalManager {
-    #modal;
-    #backdrop;
-    #options;
-    #lastFocusedElement;
-    #focusableElements;
-    #eventListeners;
-    #isOpen;
+  #modal;
+  #backdrop;
+  #options;
+  #lastFocusedElement;
+  #focusableElements;
+  #eventListeners;
+  #isOpen;
 
-    static #openModals = [];
+  static #openModals = [];
 
-    constructor(element, options = {}) {
-        this.#modal = typeof element === 'string' ? document.querySelector(element) : element;
-        this.#options = {
-            closeOnBackdrop: true,
-            closeOnEscape: true,
-            focusFirst: true,
-            onOpen: null,
-            onClose: null,
-            ...options
-        };
-        this.#isOpen = false;
-        this.#eventListeners = [];
-        this.#init();
+  constructor(element, options = {}) {
+    this.#modal = typeof element === 'string' ? document.querySelector(element) : element;
+    this.#options = {
+      closeOnBackdrop: true,
+      closeOnEscape: true,
+      focusFirst: true,
+      onOpen: null,
+      onClose: null,
+      ...options,
+    };
+    this.#isOpen = false;
+    this.#eventListeners = [];
+    this.#init();
+  }
+
+  #init() {
+    // Ensure modal has required attributes
+    if (!this.#modal.hasAttribute('role')) {
+      this.#modal.setAttribute('role', 'dialog');
+    }
+    if (!this.#modal.hasAttribute('aria-modal')) {
+      this.#modal.setAttribute('aria-modal', 'true');
     }
 
-    #init() {
-        // Ensure modal has required attributes
-        if (!this.#modal.hasAttribute('role')) {
-            this.#modal.setAttribute('role', 'dialog');
-        }
-        if (!this.#modal.hasAttribute('aria-modal')) {
-            this.#modal.setAttribute('aria-modal', 'true');
-        }
+    // Find or create backdrop
+    this.#backdrop = this.#modal.querySelector('.modal-backdrop');
 
-        // Find or create backdrop
-        this.#backdrop = this.#modal.querySelector('.modal-backdrop');
+    // Setup close triggers
+    this.#setupCloseTriggers();
+  }
 
-        // Setup close triggers
-        this.#setupCloseTriggers();
+  #setupCloseTriggers() {
+    // Close button
+    const closeBtn = this.#modal.querySelector('.modal-close');
+    if (closeBtn) {
+      const handler = (e) => {
+        e.preventDefault();
+        this.close();
+      };
+      closeBtn.addEventListener('click', handler);
+      this.#eventListeners.push({ el: closeBtn, type: 'click', handler });
     }
 
-    #setupCloseTriggers() {
-        // Close button
-        const closeBtn = this.#modal.querySelector('.modal-close');
-        if (closeBtn) {
-            const handler = (e) => {
-                e.preventDefault();
-                this.close();
-            };
-            closeBtn.addEventListener('click', handler);
-            this.#eventListeners.push({ el: closeBtn, type: 'click', handler });
-        }
+    // Elements with data-close attribute
+    const closeTriggers = this.#modal.querySelectorAll('[data-close]');
+    closeTriggers.forEach((el) => {
+      if (el.classList.contains('modal-backdrop') && !this.#options.closeOnBackdrop) {
+        return;
+      }
+      const handler = (e) => {
+        e.preventDefault();
+        this.close();
+      };
+      el.addEventListener('click', handler);
+      this.#eventListeners.push({ el, type: 'click', handler });
+    });
+  }
 
-        // Elements with data-close attribute
-        const closeTriggers = this.#modal.querySelectorAll('[data-close]');
-        closeTriggers.forEach(el => {
-            if (el.classList.contains('modal-backdrop') && !this.#options.closeOnBackdrop) {
-                return;
-            }
-            const handler = (e) => {
-                e.preventDefault();
-                this.close();
-            };
-            el.addEventListener('click', handler);
-            this.#eventListeners.push({ el, type: 'click', handler });
-        });
+  #getFocusableElements() {
+    const selector = [
+      'button:not([disabled])',
+      'input:not([disabled])',
+      'select:not([disabled])',
+      'textarea:not([disabled])',
+      'a[href]',
+      '[tabindex]:not([tabindex="-1"])',
+    ].join(', ');
+
+    return Array.from(this.#modal.querySelectorAll(selector)).filter(
+      (el) => el.offsetParent !== null && !el.classList.contains('modal-backdrop')
+    );
+  }
+
+  #trapFocus(e) {
+    if (e.key !== 'Tab') return;
+
+    const focusable = this.#getFocusableElements();
+    if (focusable.length === 0) return;
+
+    const firstEl = focusable[0];
+    const lastEl = focusable[focusable.length - 1];
+
+    if (e.shiftKey) {
+      if (document.activeElement === firstEl) {
+        e.preventDefault();
+        lastEl.focus();
+      }
+    } else {
+      if (document.activeElement === lastEl) {
+        e.preventDefault();
+        firstEl.focus();
+      }
     }
+  }
 
-    #getFocusableElements() {
-        const selector = [
-            'button:not([disabled])',
-            'input:not([disabled])',
-            'select:not([disabled])',
-            'textarea:not([disabled])',
-            'a[href]',
-            '[tabindex]:not([tabindex="-1"])'
-        ].join(', ');
-
-        return Array.from(this.#modal.querySelectorAll(selector))
-            .filter(el => el.offsetParent !== null && !el.classList.contains('modal-backdrop'));
+  #handleKeydown(e) {
+    if (e.key === 'Escape' && this.#options.closeOnEscape) {
+      e.preventDefault();
+      this.close();
     }
+    this.#trapFocus(e);
+  }
 
-    #trapFocus(e) {
-        if (e.key !== 'Tab') return;
+  open() {
+    if (this.#isOpen) return;
 
+    // Store last focused element
+    this.#lastFocusedElement = document.activeElement;
+
+    // Track open modals
+    ModalManager.#openModals.push(this);
+
+    // Show modal: remove hidden first, force a reflow so the browser
+    // records opacity:0 as the start state, then add 'open' to trigger
+    // the CSS transition. Without the reflow, both class changes are
+    // batched into one style recalculation and the transition is skipped.
+    this.#modal.classList.remove('hidden');
+    void this.#modal.offsetHeight; // Force reflow — do not remove
+    this.#modal.classList.add('open');
+    this.#isOpen = true;
+
+    // Prevent body scroll
+    document.body.style.overflow = 'hidden';
+
+    // Add keyboard listener
+    const keydownHandler = (e) => this.#handleKeydown(e);
+    document.addEventListener('keydown', keydownHandler);
+    this.#eventListeners.push({ el: document, type: 'keydown', handler: keydownHandler });
+
+    // Focus first element
+    if (this.#options.focusFirst) {
+      requestAnimationFrame(() => {
         const focusable = this.#getFocusableElements();
-        if (focusable.length === 0) return;
-
-        const firstEl = focusable[0];
-        const lastEl = focusable[focusable.length - 1];
-
-        if (e.shiftKey) {
-            if (document.activeElement === firstEl) {
-                e.preventDefault();
-                lastEl.focus();
-            }
-        } else {
-            if (document.activeElement === lastEl) {
-                e.preventDefault();
-                firstEl.focus();
-            }
+        if (focusable.length > 0) {
+          focusable[0].focus();
         }
+      });
     }
 
-    #handleKeydown(e) {
-        if (e.key === 'Escape' && this.#options.closeOnEscape) {
-            e.preventDefault();
-            this.close();
-        }
-        this.#trapFocus(e);
+    // Callback
+    if (this.#options.onOpen) {
+      this.#options.onOpen(this);
     }
 
-    open() {
-        if (this.#isOpen) return;
+    // Dispatch custom event
+    this.#modal.dispatchEvent(new CustomEvent('modal:open'));
+  }
 
-        // Store last focused element
-        this.#lastFocusedElement = document.activeElement;
+  close() {
+    if (!this.#isOpen) return;
 
-        // Track open modals
-        ModalManager.#openModals.push(this);
-
-        // Show modal: remove hidden first, force a reflow so the browser
-        // records opacity:0 as the start state, then add 'open' to trigger
-        // the CSS transition. Without the reflow, both class changes are
-        // batched into one style recalculation and the transition is skipped.
-        this.#modal.classList.remove('hidden');
-        void this.#modal.offsetHeight; // Force reflow — do not remove
-        this.#modal.classList.add('open');
-        this.#isOpen = true;
-
-        // Prevent body scroll
-        document.body.style.overflow = 'hidden';
-
-        // Add keyboard listener
-        const keydownHandler = (e) => this.#handleKeydown(e);
-        document.addEventListener('keydown', keydownHandler);
-        this.#eventListeners.push({ el: document, type: 'keydown', handler: keydownHandler });
-
-        // Focus first element
-        if (this.#options.focusFirst) {
-            requestAnimationFrame(() => {
-                const focusable = this.#getFocusableElements();
-                if (focusable.length > 0) {
-                    focusable[0].focus();
-                }
-            });
-        }
-
-        // Callback
-        if (this.#options.onOpen) {
-            this.#options.onOpen(this);
-        }
-
-        // Dispatch custom event
-        this.#modal.dispatchEvent(new CustomEvent('modal:open'));
+    // Remove from open modals
+    const index = ModalManager.#openModals.indexOf(this);
+    if (index > -1) {
+      ModalManager.#openModals.splice(index, 1);
     }
 
-    close() {
-        if (!this.#isOpen) return;
+    // Start hide transition
+    this.#modal.classList.remove('open');
+    this.#isOpen = false;
 
-        // Remove from open modals
-        const index = ModalManager.#openModals.indexOf(this);
-        if (index > -1) {
-            ModalManager.#openModals.splice(index, 1);
-        }
+    // Re-add 'hidden' after the CSS transition completes so the modal
+    // is fully removed from rendering (display:none), not just invisible.
+    // We use both transitionend and a setTimeout fallback because
+    // transitionend never fires when prefers-reduced-motion disables transitions.
+    let hidden = false;
+    const addHidden = () => {
+      if (hidden || this.#isOpen) return;
+      hidden = true;
+      this.#modal.removeEventListener('transitionend', onTransitionEnd);
+      this.#modal.classList.add('hidden');
+    };
+    const onTransitionEnd = (e) => {
+      if (e.target !== this.#modal) return;
+      addHidden();
+    };
+    this.#modal.addEventListener('transitionend', onTransitionEnd);
+    setTimeout(addHidden, 250); // fallback: slightly longer than 200ms transition
 
-        // Start hide transition
-        this.#modal.classList.remove('open');
-        this.#isOpen = false;
-
-        // Re-add 'hidden' after the CSS transition completes so the modal
-        // is fully removed from rendering (display:none), not just invisible.
-        // We use both transitionend and a setTimeout fallback because
-        // transitionend never fires when prefers-reduced-motion disables transitions.
-        let hidden = false;
-        const addHidden = () => {
-            if (hidden || this.#isOpen) return;
-            hidden = true;
-            this.#modal.removeEventListener('transitionend', onTransitionEnd);
-            this.#modal.classList.add('hidden');
-        };
-        const onTransitionEnd = (e) => {
-            if (e.target !== this.#modal) return;
-            addHidden();
-        };
-        this.#modal.addEventListener('transitionend', onTransitionEnd);
-        setTimeout(addHidden, 250); // fallback: slightly longer than 200ms transition
-
-        // Restore body scroll if no modals open
-        if (ModalManager.#openModals.length === 0) {
-            document.body.style.overflow = '';
-        }
-
-        // Remove keyboard listener
-        const keydownListener = this.#eventListeners.find(
-            l => l.el === document && l.type === 'keydown'
-        );
-        if (keydownListener) {
-            document.removeEventListener('keydown', keydownListener.handler);
-            this.#eventListeners = this.#eventListeners.filter(l => l !== keydownListener);
-        }
-
-        // Restore focus
-        if (this.#lastFocusedElement && typeof this.#lastFocusedElement.focus === 'function') {
-            this.#lastFocusedElement.focus();
-        }
-
-        // Callback
-        if (this.#options.onClose) {
-            this.#options.onClose(this);
-        }
-
-        // Dispatch custom event
-        this.#modal.dispatchEvent(new CustomEvent('modal:close'));
+    // Restore body scroll if no modals open
+    if (ModalManager.#openModals.length === 0) {
+      document.body.style.overflow = '';
     }
 
-    isOpen() {
-        return this.#isOpen;
+    // Remove keyboard listener
+    const keydownListener = this.#eventListeners.find(
+      (l) => l.el === document && l.type === 'keydown'
+    );
+    if (keydownListener) {
+      document.removeEventListener('keydown', keydownListener.handler);
+      this.#eventListeners = this.#eventListeners.filter((l) => l !== keydownListener);
     }
 
-    destroy() {
-        // Close if open
-        if (this.#isOpen) {
-            this.close();
-        }
-
-        // Remove all event listeners
-        this.#eventListeners.forEach(({ el, type, handler }) => {
-            el.removeEventListener(type, handler);
-        });
-        this.#eventListeners = [];
+    // Restore focus
+    if (this.#lastFocusedElement && typeof this.#lastFocusedElement.focus === 'function') {
+      this.#lastFocusedElement.focus();
     }
+
+    // Callback
+    if (this.#options.onClose) {
+      this.#options.onClose(this);
+    }
+
+    // Dispatch custom event
+    this.#modal.dispatchEvent(new CustomEvent('modal:close'));
+  }
+
+  isOpen() {
+    return this.#isOpen;
+  }
+
+  destroy() {
+    // Close if open
+    if (this.#isOpen) {
+      this.close();
+    }
+
+    // Remove all event listeners
+    this.#eventListeners.forEach(({ el, type, handler }) => {
+      el.removeEventListener(type, handler);
+    });
+    this.#eventListeners = [];
+  }
 }
 
-// Export for use in renderer
-if (typeof window !== 'undefined') {
-    window.ModalManager = ModalManager;
+// Export for use in renderer - avoid duplicate declaration
+if (typeof window !== 'undefined' && !window.ModalManager) {
+  window.ModalManager = ModalManager;
 }
 
 // CommonJS export

src/welcome.js

@@ -1,16 +1,18 @@
-function createWelcomeContent(recentFiles = []) {
-    const recentHtml = recentFiles.length
-        ? recentFiles.map(f => {
-            const name = f.split(/[/\\]/).pop();
-            return `<div class="welcome-recent-item" data-path="${f}"><span class="welcome-recent-name">${name}</span><span class="welcome-recent-path">${f}</span></div>`;
-        }).join('')
-        : '<p class="welcome-muted">No recent files</p>';
+function createWelcomeContent(recentFiles = [], appVersion = '') {
+  const recentHtml = recentFiles.length
+    ? recentFiles
+        .map((f) => {
+          const name = f.split(/[/\\]/).pop();
+          return `<div class="welcome-recent-item" data-path="${f}"><span class="welcome-recent-name">${name}</span><span class="welcome-recent-path">${f}</span></div>`;
+        })
+        .join('')
+    : '<p class="welcome-muted">No recent files</p>';
 
-    return `
+  return `
     <div class="welcome-container">
         <div class="welcome-hero">
             <h1 class="welcome-title">MarkdownConverter</h1>
-            <p class="welcome-version">Version 4.0.0</p>
+            <p class="welcome-version">${appVersion ? `Version ${appVersion}` : ''}</p>
             <p class="welcome-subtitle">Professional Markdown Editor & Universal Document Converter</p>
         </div>
 
@@ -45,7 +47,7 @@ function createWelcomeContent(recentFiles = []) {
             </div>
 
             <div class="welcome-section">
-                <h2>What's New in v4.0.0</h2>
+                <h2>What's New in v4.x</h2>
                 <ul class="welcome-features">
                     <li><strong>CodeMirror Editor</strong> — Syntax highlighting, code folding, multiple cursors</li>
                     <li><strong>Sidebar Panels</strong> — File Explorer, Git, Snippets, Templates</li>

src/zen-mode.js

@@ -0,0 +1,284 @@
+/**
+ * Zen Mode — distraction-free writing mode
+ * Provides typewriter scrolling, line dimming, centered content, and a floating HUD.
+ * Toggle with F11, exit with Escape.
+ */
+
+const { EditorView, ViewPlugin, Decoration } = require('@codemirror/view');
+const { RangeSetBuilder } = require('@codemirror/state');
+
+class ZenMode {
+  /**
+   * @param {import('./renderer').TabManager} tabManager
+   */
+  constructor(tabManager) {
+    this.tabManager = tabManager;
+    this.active = false;
+    this._hud = null;
+    this._timerInterval = null;
+    this._sessionStart = null;
+    this._extensions = [];
+  }
+
+  activate() {
+    if (this.active) return;
+    this.active = true;
+
+    document.body.classList.add('zen-mode');
+
+    // Collapse sidebar
+    const sidebar = document.getElementById('sidebar');
+    if (sidebar) sidebar.classList.add('collapsed');
+
+    // Hide preview pane for the active tab
+    const tab = this.tabManager.tabs.get(this.tabManager.activeTabId);
+    if (tab) {
+      const previewContainer = document.getElementById(`preview-pane-${tab.id}`);
+      if (previewContainer) previewContainer.classList.add('hidden');
+      const editorPane = document.getElementById(`editor-pane-${tab.id}`);
+      if (editorPane) editorPane.classList.add('full-width');
+
+      // Add CM6 extensions to the active editor
+      if (tab.editorView) {
+        this._extensions = [typewriterScrollExtension, lineDimmingExtension];
+        // Reconfigure is not straightforward with CM6's immutable state.
+        // Instead we dispatch effects or simply rebuild with new extensions.
+        // Since we cannot hot-swap extensions on an existing EditorView,
+        // we store a reference and the CSS + updateListener handle the rest.
+        // The typewriter + dimming plugins are applied via a compartment approach
+        // would be ideal, but for simplicity we use DOM + updateListener.
+        this._applyTypewriterBehavior(tab.editorView);
+      }
+    }
+
+    // Create HUD
+    this._createHUD();
+
+    // Start session timer
+    this._sessionStart = Date.now();
+    this._timerInterval = setInterval(() => this._updateHUD(), 1000);
+
+    // Focus editor
+    if (tab?.editorView) tab.editorView.focus();
+  }
+
+  deactivate() {
+    if (!this.active) return;
+    this.active = false;
+
+    document.body.classList.remove('zen-mode');
+
+    // Restore preview pane for the active tab
+    const tab = this.tabManager.tabs.get(this.tabManager.activeTabId);
+    if (tab) {
+      const previewContainer = document.getElementById(`preview-pane-${tab.id}`);
+      if (previewContainer) previewContainer.classList.remove('hidden');
+      const editorPane = document.getElementById(`editor-pane-${tab.id}`);
+      if (editorPane) editorPane.classList.remove('full-width');
+
+      // Remove typewriter listener
+      if (tab.editorView && this._selectionListener) {
+        window.removeEventListener('zen-typewriter', this._selectionListener);
+        this._selectionListener = null;
+      }
+    }
+
+    // Remove HUD
+    if (this._hud && this._hud.parentNode) {
+      this._hud.parentNode.removeChild(this._hud);
+      this._hud = null;
+    }
+
+    // Stop timer
+    if (this._timerInterval) {
+      clearInterval(this._timerInterval);
+      this._timerInterval = null;
+    }
+    this._sessionStart = null;
+    this._extensions = [];
+  }
+
+  toggle() {
+    if (this.active) {
+      this.deactivate();
+    } else {
+      this.activate();
+    }
+  }
+
+  _applyTypewriterBehavior(view) {
+    // We use a custom update listener that scrolls the cursor to center.
+    const scrollFn = () => {
+      if (!this.active) return;
+      const pos = view.state.selection.main.head;
+      requestAnimationFrame(() => {
+        view.dispatch({
+          effects: EditorView.scrollIntoView(pos, { y: 'center' }),
+        });
+      });
+    };
+
+    // Use interval to keep cursor centered during typing
+    this._scrollInterval = setInterval(() => {
+      if (!this.active) {
+        clearInterval(this._scrollInterval);
+        this._scrollInterval = null;
+        return;
+      }
+      // Typewriter scroll: center the cursor line
+      try {
+        const pos = view.state.selection.main.head;
+        const coords = view.coordsAtPos(pos);
+        const scroller = view.scrollDOM;
+        if (coords && scroller) {
+          const scrollerRect = scroller.getBoundingClientRect();
+          const cursorCenter = coords.top + (coords.bottom - coords.top) / 2;
+          const viewCenter = scrollerRect.top + scrollerRect.height / 2;
+          const diff = cursorCenter - viewCenter;
+          if (Math.abs(diff) > 30) {
+            scroller.scrollTop += diff;
+          }
+        }
+      } catch {
+        // Ignore errors from destroyed views
+      }
+    }, 200);
+
+    // Initial scroll to center
+    scrollFn();
+  }
+
+  _createHUD() {
+    const hud = document.createElement('div');
+    hud.className = 'zen-hud';
+    hud.innerHTML = `
+            <span class="zen-hud-item" id="zen-words">0 words</span>
+            <span class="zen-hud-sep">&middot;</span>
+            <span class="zen-hud-item" id="zen-reading-time">0 min read</span>
+            <span class="zen-hud-sep">&middot;</span>
+            <span class="zen-hud-item" id="zen-timer">00:00</span>
+            <div class="zen-progress-container" id="zen-progress-container">
+                <div class="zen-progress-bar" id="zen-progress-bar"></div>
+            </div>
+        `;
+    document.body.appendChild(hud);
+    this._hud = hud;
+    this._updateHUD();
+  }
+
+  _updateHUD() {
+    if (!this.active || !this._hud) return;
+
+    const content = this.tabManager.getEditorContent();
+    const words = content.trim()
+      ? content
+          .trim()
+          .split(/\s+/)
+          .filter((w) => w.length > 0).length
+      : 0;
+    const readingTime = Math.max(1, Math.ceil(words / 200));
+
+    const wordsEl = document.getElementById('zen-words');
+    const readingEl = document.getElementById('zen-reading-time');
+    const timerEl = document.getElementById('zen-timer');
+
+    if (wordsEl) wordsEl.textContent = `${words.toLocaleString()} words`;
+    if (readingEl) readingEl.textContent = `${readingTime} min read`;
+
+    // Session timer
+    if (this._sessionStart) {
+      const elapsed = Math.floor((Date.now() - this._sessionStart) / 1000);
+      const minutes = String(Math.floor(elapsed / 60)).padStart(2, '0');
+      const seconds = String(elapsed % 60).padStart(2, '0');
+      if (timerEl) timerEl.textContent = `${minutes}:${seconds}`;
+    }
+
+    // Word goal progress
+    const goalStr = localStorage.getItem('zen-word-goal');
+    const progressBar = document.getElementById('zen-progress-bar');
+    const progressContainer = document.getElementById('zen-progress-container');
+    if (progressBar && progressContainer) {
+      if (goalStr) {
+        const goal = parseInt(goalStr, 10);
+        if (goal > 0) {
+          const pct = Math.min(100, Math.round((words / goal) * 100));
+          progressBar.style.width = `${pct}%`;
+          progressContainer.style.display = 'block';
+        } else {
+          progressContainer.style.display = 'none';
+        }
+      } else {
+        progressContainer.style.display = 'none';
+      }
+    }
+  }
+}
+
+// Typewriter scroll ViewPlugin
+const typewriterScrollExtension = ViewPlugin.fromClass(
+  class {
+    constructor(view) {
+      this.view = view;
+    }
+
+    update(update) {
+      if (update.selectionSet || update.docChanged) {
+        const pos = update.state.selection.main.head;
+        requestAnimationFrame(() => {
+          if (this.view.dom && this.view.dom.isConnected) {
+            this.view.dispatch({
+              effects: EditorView.scrollIntoView(pos, { y: 'center' }),
+            });
+          }
+        });
+      }
+    }
+  }
+);
+
+// Line dimming ViewPlugin
+function getOpacity(distance) {
+  if (distance === 0) return 1.0;
+  if (distance === 1) return 0.7;
+  if (distance === 2) return 0.6;
+  if (distance === 3) return 0.45;
+  return 0.3;
+}
+
+const lineDimmingExtension = ViewPlugin.fromClass(
+  class {
+    constructor(view) {
+      this.decorations = this.buildDecorations(view);
+    }
+
+    update(update) {
+      if (update.docChanged || update.selectionSet || update.viewportChanged) {
+        this.decorations = this.buildDecorations(update.view);
+      }
+    }
+
+    buildDecorations(view) {
+      const builder = new RangeSetBuilder();
+      const pos = view.state.selection.main.head;
+      const activeLine = view.state.doc.lineAt(pos).number;
+      const doc = view.state.doc;
+
+      for (let lineNum = 1; lineNum <= doc.lines; lineNum++) {
+        const line = doc.line(lineNum);
+        const distance = Math.abs(lineNum - activeLine);
+        const opacity = getOpacity(distance);
+        const deco = Decoration.line({
+          attributes: { style: `opacity:${opacity};transition:opacity 0.15s ease` },
+        });
+        builder.add(line.from, line.from, deco);
+      }
+
+      return builder.finish();
+    }
+  },
+  {
+    decorations: (v) => v.decorations,
+  }
+);
+
+module.exports = { ZenMode };

tests/bundled-tools.test.js

@@ -0,0 +1,28 @@
+/**
+ * Tests for bundled external tools
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+describe('Bundled Pandoc binary', () => {
+  const rootDir = path.resolve(__dirname, '..');
+  const platform = process.platform;
+  const binaryPath = path.join(rootDir, 'bin', platform, 'pandoc');
+  const windowsBinaryPath = path.join(rootDir, 'bin', platform, 'pandoc.exe');
+
+  test('Pandoc binary exists for current platform', () => {
+    const exists = fs.existsSync(binaryPath) || fs.existsSync(windowsBinaryPath);
+    expect(exists).toBe(true);
+  });
+
+  test('Pandoc binary is executable', () => {
+    if (platform === 'win32') {
+      expect(fs.existsSync(windowsBinaryPath)).toBe(true);
+    } else {
+      expect(fs.existsSync(binaryPath)).toBe(true);
+      const stats = fs.statSync(binaryPath);
+      expect(stats.mode & 0o111).toBeGreaterThan(0);
+    }
+  });
+});

tests/command-palette.test.js

@@ -8,10 +8,10 @@
  */
 
 describe('CommandPalette', () => {
-    let CommandPalette;
+  let CommandPalette;
 
-    beforeEach(() => {
-        document.body.innerHTML = `
+  beforeEach(() => {
+    document.body.innerHTML = `
             <div class="command-palette-overlay hidden" id="command-palette-overlay">
                 <div class="command-palette">
                     <input type="text" id="command-palette-input">
@@ -19,126 +19,126 @@ describe('CommandPalette', () => {
                 </div>
             </div>
         `;
-        CommandPalette = require('../src/command-palette').CommandPalette;
-    });
+    CommandPalette = require('../src/command-palette').CommandPalette;
+  });
 
-    test('starts hidden', () => {
-        const palette = new CommandPalette();
-        expect(palette.isOpen()).toBe(false);
-    });
+  test('starts hidden', () => {
+    const palette = new CommandPalette();
+    expect(palette.isOpen()).toBe(false);
+  });
 
-    test('opens and focuses input', () => {
-        const palette = new CommandPalette();
-        palette.open();
-        expect(palette.isOpen()).toBe(true);
-    });
+  test('opens and focuses input', () => {
+    const palette = new CommandPalette();
+    palette.open();
+    expect(palette.isOpen()).toBe(true);
+  });
 
-    test('closes', () => {
-        const palette = new CommandPalette();
-        palette.open();
-        palette.close();
-        expect(palette.isOpen()).toBe(false);
-    });
+  test('closes', () => {
+    const palette = new CommandPalette();
+    palette.open();
+    palette.close();
+    expect(palette.isOpen()).toBe(false);
+  });
 
-    test('registers and renders commands', () => {
-        const palette = new CommandPalette();
-        palette.register('Test Command', 'Ctrl+T', () => {});
-        palette.register('Another Command', '', () => {});
-        palette.open();
-        const items = document.querySelectorAll('.command-item');
-        expect(items.length).toBe(2);
-    });
+  test('registers and renders commands', () => {
+    const palette = new CommandPalette();
+    palette.register('Test Command', 'Ctrl+T', () => {});
+    palette.register('Another Command', '', () => {});
+    palette.open();
+    const items = document.querySelectorAll('.command-item');
+    expect(items.length).toBe(2);
+  });
 
-    test('filters commands by search', () => {
-        const palette = new CommandPalette();
-        palette.register('Save File', 'Ctrl+S', () => {});
-        palette.register('Open File', 'Ctrl+O', () => {});
-        palette.register('Bold Text', 'Ctrl+B', () => {});
-        palette.renderResults('file');
-        const items = document.querySelectorAll('.command-item');
-        expect(items.length).toBe(2);
-    });
+  test('filters commands by search', () => {
+    const palette = new CommandPalette();
+    palette.register('Save File', 'Ctrl+S', () => {});
+    palette.register('Open File', 'Ctrl+O', () => {});
+    palette.register('Bold Text', 'Ctrl+B', () => {});
+    palette.renderResults('file');
+    const items = document.querySelectorAll('.command-item');
+    expect(items.length).toBe(2);
+  });
 
-    test('executes command', () => {
-        const palette = new CommandPalette();
-        const action = jest.fn();
-        palette.register('Test', '', action);
-        palette.open();
-        palette.executeSelected();
-        expect(action).toHaveBeenCalled();
-    });
+  test('executes command', () => {
+    const palette = new CommandPalette();
+    const action = jest.fn();
+    palette.register('Test', '', action);
+    palette.open();
+    palette.executeSelected();
+    expect(action).toHaveBeenCalled();
+  });
 
-    test('highlights matching text', () => {
-        const palette = new CommandPalette();
-        const result = palette.highlightMatch('Save File', 'save');
-        expect(result).toContain('<strong>');
-        expect(result).toContain('Save');
-    });
+  test('highlights matching text', () => {
+    const palette = new CommandPalette();
+    const result = palette.highlightMatch('Save File', 'save');
+    expect(result).toContain('<strong>');
+    expect(result).toContain('Save');
+  });
 
-    test('highlightMatch returns original text when no query', () => {
-        const palette = new CommandPalette();
-        const result = palette.highlightMatch('Save File', '');
-        expect(result).toBe('Save File');
-    });
+  test('highlightMatch returns original text when no query', () => {
+    const palette = new CommandPalette();
+    const result = palette.highlightMatch('Save File', '');
+    expect(result).toBe('Save File');
+  });
 
-    test('filters case-insensitively', () => {
-        const palette = new CommandPalette();
-        palette.register('Save File', '', () => {});
-        palette.register('Open File', '', () => {});
-        palette.renderResults('SAVE');
-        const items = document.querySelectorAll('.command-item');
-        expect(items.length).toBe(1);
-    });
+  test('filters case-insensitively', () => {
+    const palette = new CommandPalette();
+    palette.register('Save File', '', () => {});
+    palette.register('Open File', '', () => {});
+    palette.renderResults('SAVE');
+    const items = document.querySelectorAll('.command-item');
+    expect(items.length).toBe(1);
+  });
 
-    test('shows all commands when query is empty', () => {
-        const palette = new CommandPalette();
-        palette.register('Cmd1', '', () => {});
-        palette.register('Cmd2', '', () => {});
-        palette.register('Cmd3', '', () => {});
-        palette.renderResults('');
-        const items = document.querySelectorAll('.command-item');
-        expect(items.length).toBe(3);
-    });
+  test('shows all commands when query is empty', () => {
+    const palette = new CommandPalette();
+    palette.register('Cmd1', '', () => {});
+    palette.register('Cmd2', '', () => {});
+    palette.register('Cmd3', '', () => {});
+    palette.renderResults('');
+    const items = document.querySelectorAll('.command-item');
+    expect(items.length).toBe(3);
+  });
 
-    test('displays shortcut when provided', () => {
-        const palette = new CommandPalette();
-        palette.register('Save File', 'Ctrl+S', () => {});
-        palette.open();
-        const shortcut = document.querySelector('.command-shortcut');
-        expect(shortcut).not.toBeNull();
-        expect(shortcut.textContent).toBe('Ctrl+S');
-    });
+  test('displays shortcut when provided', () => {
+    const palette = new CommandPalette();
+    palette.register('Save File', 'Ctrl+S', () => {});
+    palette.open();
+    const shortcut = document.querySelector('.command-shortcut');
+    expect(shortcut).not.toBeNull();
+    expect(shortcut.textContent).toBe('Ctrl+S');
+  });
 
-    test('does not display shortcut when empty', () => {
-        const palette = new CommandPalette();
-        palette.register('Test Command', '', () => {});
-        palette.open();
-        const shortcut = document.querySelector('.command-shortcut');
-        expect(shortcut).toBeNull();
-    });
+  test('does not display shortcut when empty', () => {
+    const palette = new CommandPalette();
+    palette.register('Test Command', '', () => {});
+    palette.open();
+    const shortcut = document.querySelector('.command-shortcut');
+    expect(shortcut).toBeNull();
+  });
 
-    test('closes on overlay click', () => {
-        const palette = new CommandPalette();
-        palette.open();
-        // Simulate click on the overlay itself
-        const event = new Event('click', { bubbles: true });
-        Object.defineProperty(event, 'target', { value: palette.overlay });
-        palette.overlay.dispatchEvent(event);
-        expect(palette.isOpen()).toBe(false);
-    });
+  test('closes on overlay click', () => {
+    const palette = new CommandPalette();
+    palette.open();
+    // Simulate click on the overlay itself
+    const event = new Event('click', { bubbles: true });
+    Object.defineProperty(event, 'target', { value: palette.overlay });
+    palette.overlay.dispatchEvent(event);
+    expect(palette.isOpen()).toBe(false);
+  });
 
-    test('executeSelected does nothing when no commands', () => {
-        const palette = new CommandPalette();
-        palette.open();
-        // Should not throw
-        expect(() => palette.executeSelected()).not.toThrow();
-    });
+  test('executeSelected does nothing when no commands', () => {
+    const palette = new CommandPalette();
+    palette.open();
+    // Should not throw
+    expect(() => palette.executeSelected()).not.toThrow();
+  });
 
-    test('closes after executing command', () => {
-        const palette = new CommandPalette();
-        palette.register('Test', '', jest.fn());
-        palette.open();
-        palette.executeSelected();
-        expect(palette.isOpen()).toBe(false);
-    });
+  test('closes after executing command', () => {
+    const palette = new CommandPalette();
+    palette.register('Test', '', jest.fn());
+    palette.open();
+    palette.executeSelected();
+    expect(palette.isOpen()).toBe(false);
+  });
 });

tests/event-bus.test.js

@@ -0,0 +1,66 @@
+const { EventBus } = require('../src/plugins/event-bus');
+
+describe('EventBus', () => {
+  let bus;
+
+  beforeEach(() => {
+    bus = new EventBus();
+  });
+
+  test('on/emit — listener receives payload', () => {
+    const received = [];
+    bus.on('document:saved', (payload) => received.push(payload));
+    bus.emit('document:saved', { filePath: '/test.md', tabId: 'tab1' });
+    expect(received).toEqual([{ filePath: '/test.md', tabId: 'tab1' }]);
+  });
+
+  test('on — ignores events with no listeners', () => {
+    expect(() => bus.emit('unknown:event', {})).not.toThrow();
+  });
+
+  test('off — removes specific listener', () => {
+    const handler = jest.fn();
+    bus.on('test:event', handler);
+    bus.off('test:event', handler);
+    bus.emit('test:event', {});
+    expect(handler).not.toHaveBeenCalled();
+  });
+
+  test('off — removes all listeners for event when no handler given', () => {
+    const h1 = jest.fn();
+    const h2 = jest.fn();
+    bus.on('test:event', h1);
+    bus.on('test:event', h2);
+    bus.off('test:event');
+    bus.emit('test:event', {});
+    expect(h1).not.toHaveBeenCalled();
+    expect(h2).not.toHaveBeenCalled();
+  });
+
+  test('hasHandler — returns true when listener exists', () => {
+    bus.on('ai:analyze', () => {});
+    expect(bus.hasHandler('ai:analyze')).toBe(true);
+  });
+
+  test('hasHandler — returns false when no listener exists', () => {
+    expect(bus.hasHandler('ai:analyze')).toBe(false);
+  });
+
+  test('handler errors are caught and logged, not thrown', () => {
+    const errorSpy = jest.spyOn(console, 'error').mockImplementation(() => {});
+    bus.on('bad:event', () => {
+      throw new Error('boom');
+    });
+    expect(() => bus.emit('bad:event', {})).not.toThrow();
+    expect(errorSpy).toHaveBeenCalled();
+    errorSpy.mockRestore();
+  });
+
+  test('multiple listeners all receive the event', () => {
+    const results = [];
+    bus.on('multi:event', () => results.push('a'));
+    bus.on('multi:event', () => results.push('b'));
+    bus.emit('multi:event', {});
+    expect(results).toEqual(['a', 'b']);
+  });
+});

tests/git-operations.test.js

@@ -0,0 +1,117 @@
+/**
+ * Git Operations Utilities Test Suite
+ * Tests for async patterns and error handling
+ * @version 4.3.0
+ */
+
+describe('GitOperations Utilities', () => {
+  describe('error handling patterns', () => {
+    it('should handle git errors gracefully', () => {
+      const errorResponse = { error: 'Not a git repository' };
+
+      expect(errorResponse).toHaveProperty('error');
+      expect(errorResponse.error).toContain('repository');
+    });
+
+    it('should return error object on failure', () => {
+      const failureResult = { error: 'Failed to commit' };
+
+      expect(failureResult).toBeDefined();
+      expect(failureResult.error).toBeTruthy();
+    });
+  });
+
+  describe('async patterns', () => {
+    it('should handle async operations', async () => {
+      const asyncFn = async () => {
+        return { status: 'success' };
+      };
+
+      const result = await asyncFn();
+      expect(result).toHaveProperty('status');
+    });
+
+    it('should handle async errors', async () => {
+      const asyncFnWithError = async () => {
+        throw new Error('Git operation failed');
+      };
+
+      try {
+        await asyncFnWithError();
+        expect(true).toBe(false); // Should not reach here
+      } catch (err) {
+        expect(err.message).toContain('Git');
+      }
+    });
+  });
+
+  describe('git operations', () => {
+    it('should document expected operations', () => {
+      const gitOps = [
+        'getStatus',
+        'stage',
+        'commit',
+        'log',
+        'diff',
+        'branch',
+        'checkout',
+        'push',
+        'pull',
+      ];
+
+      expect(gitOps.length).toBeGreaterThan(0);
+      gitOps.forEach((op) => {
+        expect(typeof op).toBe('string');
+        expect(op.length).toBeGreaterThan(0);
+      });
+    });
+
+    it('should handle directory paths', () => {
+      const paths = ['/home/user/project', './current/dir', '../parent/dir'];
+
+      paths.forEach((pathStr) => {
+        expect(typeof pathStr).toBe('string');
+        expect(pathStr.length).toBeGreaterThan(0);
+      });
+    });
+
+    it('should handle commit messages', () => {
+      const messages = [
+        'fix: bug in git panel',
+        'feat: add new feature',
+        'refactor: clean up code',
+      ];
+
+      messages.forEach((msg) => {
+        expect(typeof msg).toBe('string');
+        expect(msg.length).toBeGreaterThan(0);
+      });
+    });
+  });
+
+  describe('response structures', () => {
+    it('should return status info', () => {
+      const statusResponse = {
+        conflicted: [],
+        created: [],
+        deleted: [],
+        modified: [],
+        renamed: [],
+        staged: ['file.md'],
+      };
+
+      expect(statusResponse).toHaveProperty('staged');
+      expect(Array.isArray(statusResponse.staged)).toBe(true);
+    });
+
+    it('should return log entries', () => {
+      const logResponse = {
+        all: [{ hash: 'abc123', message: 'fix: something' }],
+        latest: { hash: 'abc123', message: 'fix: something' },
+      };
+
+      expect(logResponse).toHaveProperty('all');
+      expect(Array.isArray(logResponse.all)).toBe(true);
+    });
+  });
+});

tests/goal-tracker.test.js

@@ -0,0 +1,84 @@
+const { GoalTracker } = require('../src/plugins/built-in/writing-studio/goal-tracker');
+
+describe('GoalTracker', () => {
+  let tracker;
+  let store;
+
+  beforeEach(() => {
+    store = {};
+    tracker = new GoalTracker({
+      get: (key) => store[key],
+      set: (key, value) => {
+        store[key] = value;
+      },
+    });
+  });
+
+  test('addWords records words for today', () => {
+    tracker.addWords(500);
+    const today = new Date().toISOString().split('T')[0];
+    expect(store['plugins.writing-studio.history']).toBeDefined();
+    const history = JSON.parse(store['plugins.writing-studio.history']);
+    expect(history[today].words).toBe(500);
+  });
+
+  test('addWords accumulates across multiple calls', () => {
+    tracker.addWords(300);
+    tracker.addWords(200);
+    const today = new Date().toISOString().split('T')[0];
+    const history = JSON.parse(store['plugins.writing-studio.history']);
+    expect(history[today].words).toBe(500);
+  });
+
+  test('getDailyProgress returns 0 when no history', () => {
+    expect(tracker.getDailyProgress(1000)).toEqual({ written: 0, goal: 1000, pct: 0 });
+  });
+
+  test('getDailyProgress returns percentage', () => {
+    tracker.addWords(500);
+    const progress = tracker.getDailyProgress(1000);
+    expect(progress.written).toBe(500);
+    expect(progress.pct).toBe(50);
+  });
+
+  test('getStreak counts consecutive days meeting goal', () => {
+    const today = new Date();
+    for (let i = 0; i < 3; i++) {
+      const d = new Date(today);
+      d.setDate(d.getDate() - i);
+      const key = d.toISOString().split('T')[0];
+      tracker._setHistoryDay(key, { words: 1200 });
+    }
+    const streak = tracker.getStreak(1000);
+    expect(streak).toBe(3);
+  });
+
+  test('getStreak breaks on missed day', () => {
+    const today = new Date();
+    tracker._setHistoryDay(today.toISOString().split('T')[0], { words: 1200 });
+    const yesterday = new Date(today);
+    yesterday.setDate(yesterday.getDate() - 1);
+    tracker._setHistoryDay(yesterday.toISOString().split('T')[0], { words: 500 });
+    const dayBefore = new Date(today);
+    dayBefore.setDate(dayBefore.getDate() - 2);
+    tracker._setHistoryDay(dayBefore.toISOString().split('T')[0], { words: 1200 });
+    expect(tracker.getStreak(1000)).toBe(1);
+  });
+
+  test('getLast30Days returns array of 30 entries', () => {
+    tracker.addWords(100);
+    const days = tracker.getLast30Days();
+    expect(days.length).toBe(30);
+    expect(days[29].words).toBe(100);
+  });
+
+  test('getWeeklyTotal sums last 7 days', () => {
+    const today = new Date();
+    for (let i = 0; i < 7; i++) {
+      const d = new Date(today);
+      d.setDate(d.getDate() - i);
+      tracker._setHistoryDay(d.toISOString().split('T')[0], { words: 200 });
+    }
+    expect(tracker.getWeeklyTotal()).toBe(1400);
+  });
+});

tests/lint-quality.test.js

@@ -0,0 +1,18 @@
+/**
+ * Tests ensuring the codebase has no ESLint warnings.
+ */
+
+const { execSync } = require('child_process');
+const path = require('path');
+
+describe('ESLint quality gate', () => {
+  test('src and tests have no ESLint warnings', () => {
+    const rootDir = path.resolve(__dirname, '..');
+    const result = execSync('npm run lint', {
+      cwd: rootDir,
+      encoding: 'utf8',
+      stdio: ['pipe', 'pipe', 'pipe'],
+    });
+    expect(result).not.toMatch(/warning/);
+  });
+});

tests/main-utils.test.js

@@ -4,97 +4,96 @@
  */
 
 describe('sanitizeErrorMessage', () => {
-    const sanitizeErrorMessage = (message) => {
-        if (typeof message !== 'string') return String(message);
-        return message
-            .replace(/[A-Z]:\\[^\s"']+\\([^\s"'\\]+)/gi, '$1')
-            .replace(/\/[^\s"']+\/([^\s"'/]+)/g, '$1');
-    };
+  const sanitizeErrorMessage = (message) => {
+    if (typeof message !== 'string') return String(message);
+    return message
+      .replace(/[A-Z]:\\[^\s"']+\\([^\s"'\\]+)/gi, '$1')
+      .replace(/\/[^\s"']+\/([^\s"'/]+)/g, '$1');
+  };
 
-    test('strips Windows absolute paths', () => {
-        expect(sanitizeErrorMessage('Error in C:\\Users\\test\\file.js'))
-            .toBe('Error in file.js');
-    });
+  test('strips Windows absolute paths', () => {
+    expect(sanitizeErrorMessage('Error in C:\\Users\\test\\file.js')).toBe('Error in file.js');
+  });
 
-    test('strips Unix absolute paths', () => {
-        expect(sanitizeErrorMessage('Error in /home/user/project/file.js'))
-            .toBe('Error in file.js');
-    });
+  test('strips Unix absolute paths', () => {
+    expect(sanitizeErrorMessage('Error in /home/user/project/file.js')).toBe('Error in file.js');
+  });
 
-    test('handles non-string input', () => {
-        expect(sanitizeErrorMessage(42)).toBe('42');
-        expect(sanitizeErrorMessage(null)).toBe('null');
-    });
+  test('handles non-string input', () => {
+    expect(sanitizeErrorMessage(42)).toBe('42');
+    expect(sanitizeErrorMessage(null)).toBe('null');
+  });
 
-    test('preserves messages without paths', () => {
-        expect(sanitizeErrorMessage('Something went wrong'))
-            .toBe('Something went wrong');
-    });
+  test('preserves messages without paths', () => {
+    expect(sanitizeErrorMessage('Something went wrong')).toBe('Something went wrong');
+  });
 
-    test('strips nested Windows paths', () => {
-        expect(sanitizeErrorMessage('Cannot read C:\\Users\\admin\\AppData\\Local\\config.json'))
-            .toBe('Cannot read config.json');
-    });
+  test('strips nested Windows paths', () => {
+    expect(sanitizeErrorMessage('Cannot read C:\\Users\\admin\\AppData\\Local\\config.json')).toBe(
+      'Cannot read config.json'
+    );
+  });
 
-    test('strips nested Unix paths', () => {
-        expect(sanitizeErrorMessage('File not found: /var/log/app/error.log'))
-            .toBe('File not found: error.log');
-    });
+  test('strips nested Unix paths', () => {
+    expect(sanitizeErrorMessage('File not found: /var/log/app/error.log')).toBe(
+      'File not found: error.log'
+    );
+  });
 
-    test('handles undefined input', () => {
-        expect(sanitizeErrorMessage(undefined)).toBe('undefined');
-    });
+  test('handles undefined input', () => {
+    expect(sanitizeErrorMessage(undefined)).toBe('undefined');
+  });
 });
 
 describe('createRateLimiter', () => {
-    const createRateLimiter = (minIntervalMs = 2000) => {
-        let lastCall = 0;
-        return function canProceed() {
-            const now = Date.now();
-            if (now - lastCall < minIntervalMs) return false;
-            lastCall = now;
-            return true;
-        };
+  const createRateLimiter = (minIntervalMs = 2000) => {
+    let lastCall = 0;
+    return function canProceed() {
+      const now = Date.now();
+      if (now - lastCall < minIntervalMs) return false;
+      lastCall = now;
+      return true;
     };
+  };
 
-    test('allows first call', () => {
-        const limiter = createRateLimiter(1000);
-        expect(limiter()).toBe(true);
-    });
+  test('allows first call', () => {
+    const limiter = createRateLimiter(1000);
+    expect(limiter()).toBe(true);
+  });
 
-    test('blocks rapid calls', () => {
-        const limiter = createRateLimiter(1000);
-        limiter(); // first call
-        expect(limiter()).toBe(false); // too soon
-    });
+  test('blocks rapid calls', () => {
+    const limiter = createRateLimiter(1000);
+    limiter(); // first call
+    expect(limiter()).toBe(false); // too soon
+  });
 
-    test('allows call after interval', () => {
-        jest.useFakeTimers();
-        const limiter = createRateLimiter(1000);
-        limiter();
-        jest.advanceTimersByTime(1001);
-        expect(limiter()).toBe(true);
-        jest.useRealTimers();
-    });
+  test('allows call after interval', () => {
+    jest.useFakeTimers();
+    const limiter = createRateLimiter(1000);
+    limiter();
+    jest.advanceTimersByTime(1001);
+    expect(limiter()).toBe(true);
+    jest.useRealTimers();
+  });
 
-    test('uses default interval of 2000ms', () => {
-        jest.useFakeTimers();
-        const limiter = createRateLimiter();
-        limiter();
-        jest.advanceTimersByTime(1999);
-        expect(limiter()).toBe(false);
-        jest.advanceTimersByTime(2);
-        expect(limiter()).toBe(true);
-        jest.useRealTimers();
-    });
+  test('uses default interval of 2000ms', () => {
+    jest.useFakeTimers();
+    const limiter = createRateLimiter();
+    limiter();
+    jest.advanceTimersByTime(1999);
+    expect(limiter()).toBe(false);
+    jest.advanceTimersByTime(2);
+    expect(limiter()).toBe(true);
+    jest.useRealTimers();
+  });
 
-    test('resets after successful call', () => {
-        jest.useFakeTimers();
-        const limiter = createRateLimiter(500);
-        limiter();
-        jest.advanceTimersByTime(501);
-        limiter(); // resets the timer
-        expect(limiter()).toBe(false); // too soon after second call
-        jest.useRealTimers();
-    });
+  test('resets after successful call', () => {
+    jest.useFakeTimers();
+    const limiter = createRateLimiter(500);
+    limiter();
+    jest.advanceTimersByTime(501);
+    limiter(); // resets the timer
+    expect(limiter()).toBe(false); // too soon after second call
+    jest.useRealTimers();
+  });
 });

tests/markdown-extensions.test.js

@@ -4,127 +4,259 @@
  */
 
 describe('Markdown Extensions', () => {
-    describe('TOC generation from headings', () => {
-        test('extracts all heading levels', () => {
-            const html = '<h1>Title</h1><h2>Section 1</h2><h2>Section 2</h2><h3>Subsection</h3>';
-            const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
-            const toc = [];
-            let match;
-            while ((match = headingRegex.exec(html)) !== null) {
-                toc.push({ level: parseInt(match[1]), text: match[2] });
-            }
-            expect(toc).toHaveLength(4);
-            expect(toc[0]).toEqual({ level: 1, text: 'Title' });
-            expect(toc[3]).toEqual({ level: 3, text: 'Subsection' });
-        });
-
-        test('handles empty HTML', () => {
-            const html = '<p>No headings here</p>';
-            const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
-            const toc = [];
-            let match;
-            while ((match = headingRegex.exec(html)) !== null) {
-                toc.push({ level: parseInt(match[1]), text: match[2] });
-            }
-            expect(toc).toHaveLength(0);
-        });
-
-        test('handles headings with attributes', () => {
-            const html = '<h1 id="title" class="main">Title</h1><h2 id="sec">Section</h2>';
-            const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
-            const toc = [];
-            let match;
-            while ((match = headingRegex.exec(html)) !== null) {
-                toc.push({ level: parseInt(match[1]), text: match[2] });
-            }
-            expect(toc).toHaveLength(2);
-            expect(toc[0].text).toBe('Title');
-        });
+  describe('TOC generation from headings', () => {
+    test('extracts all heading levels', () => {
+      const html = '<h1>Title</h1><h2>Section 1</h2><h2>Section 2</h2><h3>Subsection</h3>';
+      const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
+      const toc = [];
+      let match;
+      while ((match = headingRegex.exec(html)) !== null) {
+        toc.push({ level: parseInt(match[1]), text: match[2] });
+      }
+      expect(toc).toHaveLength(4);
+      expect(toc[0]).toEqual({ level: 1, text: 'Title' });
+      expect(toc[3]).toEqual({ level: 3, text: 'Subsection' });
     });
 
-    describe('Admonition regex matching', () => {
-        test('matches note admonition', () => {
-            const src = ':::note\nThis is a note.\n:::\n';
-            const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
-            expect(match).not.toBeNull();
-            expect(match[1]).toBe('note');
-            expect(match[2].trim()).toBe('This is a note.');
-        });
-
-        test('matches all admonition types', () => {
-            const types = ['note', 'warning', 'tip', 'danger', 'info'];
-            types.forEach(type => {
-                const src = `:::${type}\nContent\n:::\n`;
-                const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
-                expect(match).not.toBeNull();
-                expect(match[1]).toBe(type);
-            });
-        });
-
-        test('does not match invalid admonition type', () => {
-            const src = ':::custom\nContent\n:::\n';
-            const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
-            expect(match).toBeNull();
-        });
-
-        test('captures multiline content', () => {
-            const src = ':::warning\nLine 1\nLine 2\nLine 3\n:::\n';
-            const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
-            expect(match).not.toBeNull();
-            expect(match[2]).toContain('Line 1');
-            expect(match[2]).toContain('Line 3');
-        });
+    test('handles empty HTML', () => {
+      const html = '<p>No headings here</p>';
+      const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
+      const toc = [];
+      let match;
+      while ((match = headingRegex.exec(html)) !== null) {
+        toc.push({ level: parseInt(match[1]), text: match[2] });
+      }
+      expect(toc).toHaveLength(0);
     });
 
-    describe('PlantUML hex encoding', () => {
-        const plantumlEncode = (text) => {
-            const hex = Array.from(Buffer.from(text, 'utf-8'))
-                .map(b => b.toString(16).padStart(2, '0'))
-                .join('');
-            return '~h' + hex;
-        };
+    test('handles headings with attributes', () => {
+      const html = '<h1 id="title" class="main">Title</h1><h2 id="sec">Section</h2>';
+      const headingRegex = /<h([1-6])[^>]*>(.*?)<\/h[1-6]>/gi;
+      const toc = [];
+      let match;
+      while ((match = headingRegex.exec(html)) !== null) {
+        toc.push({ level: parseInt(match[1]), text: match[2] });
+      }
+      expect(toc).toHaveLength(2);
+      expect(toc[0].text).toBe('Title');
+    });
+  });
 
-        test('encodes simple text', () => {
-            const encoded = plantumlEncode('A -> B');
-            expect(encoded).toBe('~h41202d3e2042');
-        });
-
-        test('encodes empty string', () => {
-            expect(plantumlEncode('')).toBe('~h');
-        });
-
-        test('encodes special characters', () => {
-            const encoded = plantumlEncode('@startuml');
-            expect(encoded).toMatch(/^~h[0-9a-f]+$/);
-            // '@' is 0x40, 's' is 0x73
-            expect(encoded.startsWith('~h40')).toBe(true);
-        });
+  describe('Admonition regex matching', () => {
+    test('matches note admonition', () => {
+      const src = ':::note\nThis is a note.\n:::\n';
+      const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
+      expect(match).not.toBeNull();
+      expect(match[1]).toBe('note');
+      expect(match[2].trim()).toBe('This is a note.');
     });
 
-    describe('Slug generation for TOC anchors', () => {
-        const slugify = (text) => {
-            return text
-                .toLowerCase()
-                .replace(/[^\w\s-]/g, '')
-                .replace(/\s+/g, '-')
-                .replace(/-+/g, '-')
-                .trim();
-        };
-
-        test('converts heading to slug', () => {
-            expect(slugify('Hello World')).toBe('hello-world');
-        });
-
-        test('removes special characters', () => {
-            expect(slugify('What is C++?')).toBe('what-is-c');
-        });
-
-        test('collapses multiple dashes', () => {
-            expect(slugify('Hello   World')).toBe('hello-world');
-        });
-
-        test('handles already lowercase text', () => {
-            expect(slugify('simple')).toBe('simple');
-        });
+    test('matches all admonition types', () => {
+      const types = ['note', 'warning', 'tip', 'danger', 'info'];
+      types.forEach((type) => {
+        const src = `:::${type}\nContent\n:::\n`;
+        const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
+        expect(match).not.toBeNull();
+        expect(match[1]).toBe(type);
+      });
     });
+
+    test('does not match invalid admonition type', () => {
+      const src = ':::custom\nContent\n:::\n';
+      const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
+      expect(match).toBeNull();
+    });
+
+    test('captures multiline content', () => {
+      const src = ':::warning\nLine 1\nLine 2\nLine 3\n:::\n';
+      const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
+      expect(match).not.toBeNull();
+      expect(match[2]).toContain('Line 1');
+      expect(match[2]).toContain('Line 3');
+    });
+  });
+
+  describe('Admonitions full parsing integration (mocked environment)', () => {
+    const extension = {
+      name: 'admonition',
+      level: 'block',
+      start(src) {
+        return src.match(/^:::(note|warning|tip|danger|info)/m)?.index;
+      },
+      tokenizer(src) {
+        const match = src.match(/^:::(note|warning|tip|danger|info)\s*\n([\s\S]*?)^:::\s*$/m);
+        if (match && match.index === 0) {
+          const admonitionType = match[1];
+          const text = match[2].trim();
+          const tokens = [];
+          this.lexer.blockTokens(text, tokens);
+          return {
+            type: 'admonition',
+            raw: match[0],
+            admonitionType,
+            text,
+            tokens,
+          };
+        }
+      },
+      renderer(token) {
+        const icons = { note: 'ℹ', warning: '⚠', tip: '💡', danger: '🔴', info: 'ℹ' };
+        const icon = icons[token.admonitionType] || 'ℹ';
+        const inner = this.parser.parse(token.tokens || []);
+        return `<div class="admonition admonition-${token.admonitionType}">
+                    <div class="admonition-title">${icon} ${token.admonitionType.charAt(0).toUpperCase() + token.admonitionType.slice(1)}</div>
+                    <div class="admonition-content">${inner}</div>
+                </div>`;
+      },
+    };
+
+    test('tokenizer correctly extracts tokens and calls blockTokens', () => {
+      const src = ':::note\nThis is a note.\n:::';
+      const mockLexer = {
+        blockTokens: jest.fn((text, tokens) => {
+          tokens.push({ type: 'text', text });
+        }),
+      };
+      const context = { lexer: mockLexer };
+      const result = extension.tokenizer.call(context, src);
+
+      expect(result).toBeDefined();
+      expect(result.type).toBe('admonition');
+      expect(result.admonitionType).toBe('note');
+      expect(result.text).toBe('This is a note.');
+      expect(mockLexer.blockTokens).toHaveBeenCalledWith('This is a note.', expect.any(Array));
+      expect(result.tokens).toEqual([{ type: 'text', text: 'This is a note.' }]);
+    });
+
+    test('renderer correctly translates tokens to HTML', () => {
+      const token = {
+        type: 'admonition',
+        admonitionType: 'warning',
+        tokens: [{ type: 'text', text: 'Be careful!' }],
+      };
+      const mockParser = {
+        parse: jest.fn(() => '<p>Be careful!</p>'),
+      };
+      const context = { parser: mockParser };
+      const html = extension.renderer.call(context, token);
+
+      expect(html).toContain('admonition admonition-warning');
+      expect(html).toContain('⚠ Warning');
+      expect(html).toContain('<p>Be careful!</p>');
+      expect(mockParser.parse).toHaveBeenCalledWith(token.tokens);
+    });
+  });
+
+  describe('PlantUML hex encoding', () => {
+    const plantumlEncode = (text) => {
+      const hex = Array.from(Buffer.from(text, 'utf-8'))
+        .map((b) => b.toString(16).padStart(2, '0'))
+        .join('');
+      return '~h' + hex;
+    };
+
+    test('encodes simple text', () => {
+      const encoded = plantumlEncode('A -> B');
+      expect(encoded).toBe('~h41202d3e2042');
+    });
+
+    test('encodes empty string', () => {
+      expect(plantumlEncode('')).toBe('~h');
+    });
+
+    test('encodes special characters', () => {
+      const encoded = plantumlEncode('@startuml');
+      expect(encoded).toMatch(/^~h[0-9a-f]+$/);
+      // '@' is 0x40, 's' is 0x73
+      expect(encoded.startsWith('~h40')).toBe(true);
+    });
+  });
+
+  describe('Slug generation for TOC anchors', () => {
+    const slugify = (text) => {
+      return text
+        .toLowerCase()
+        .replace(/[^\w\s-]/g, '')
+        .replace(/\s+/g, '-')
+        .replace(/-+/g, '-')
+        .trim();
+    };
+
+    test('converts heading to slug', () => {
+      expect(slugify('Hello World')).toBe('hello-world');
+    });
+
+    test('removes special characters', () => {
+      expect(slugify('What is C++?')).toBe('what-is-c');
+    });
+
+    test('collapses multiple dashes', () => {
+      expect(slugify('Hello   World')).toBe('hello-world');
+    });
+
+    test('handles already lowercase text', () => {
+      expect(slugify('simple')).toBe('simple');
+    });
+  });
+
+  describe('scopeCSS utility', () => {
+    const scopeCSS = (cssText, scopeSelector) => {
+      if (!cssText) return '';
+      return cssText.replace(
+        /([^\r\n,{}]+)(,(?=[^}]*{)|(?=[^{]*{))/g,
+        (match, selector, separator) => {
+          const trimmed = selector.trim();
+          if (
+            !trimmed ||
+            trimmed.startsWith('@') ||
+            trimmed.startsWith(':root') ||
+            trimmed.startsWith('from') ||
+            trimmed.startsWith('to') ||
+            /^\d+%$/.test(trimmed)
+          ) {
+            return match;
+          }
+          return scopeSelector + ' ' + trimmed + (separator || '');
+        }
+      );
+    };
+
+    test('scopes standard tag selector', () => {
+      const css = 'h1 { color: red; }';
+      const scoped = scopeCSS(css, '.preview-content');
+      expect(scoped).toBe('.preview-content h1{ color: red; }');
+    });
+
+    test('scopes multiple class selectors', () => {
+      const css = '.title, .content { font-family: sans-serif; }';
+      const scoped = scopeCSS(css, '.preview-content');
+      expect(scoped).toBe(
+        '.preview-content .title,.preview-content .content{ font-family: sans-serif; }'
+      );
+    });
+
+    test('ignores @rules like @media', () => {
+      const css = '@media (max-width: 600px) { h1 { color: blue; } }';
+      const scoped = scopeCSS(css, '.preview-content');
+      expect(scoped).toContain('@media (max-width: 600px)');
+    });
+
+    test('ignores :root selector', () => {
+      const css = ':root { --color: red; }';
+      const scoped = scopeCSS(css, '.preview-content');
+      expect(scoped).toBe(':root { --color: red; }');
+    });
+
+    test('ignores keyframe percentages', () => {
+      const css = '0% { opacity: 0; } 100% { opacity: 1; }';
+      const scoped = scopeCSS(css, '.preview-content');
+      expect(scoped).toContain('0%');
+      expect(scoped).toContain('100%');
+    });
+
+    test('handles empty input', () => {
+      expect(scopeCSS('', '.preview-content')).toBe('');
+      expect(scopeCSS(null, '.preview-content')).toBe('');
+    });
+  });
 });

tests/modal-manager.test.js

@@ -9,272 +9,272 @@
 const { ModalManager } = require('../src/utils/ModalManager');
 
 function createModalElement(id = 'test-modal') {
-    const modal = document.createElement('div');
-    modal.id = id;
-    modal.className = 'modal hidden';
-    modal.setAttribute('role', 'dialog');
-    modal.setAttribute('aria-modal', 'true');
+  const modal = document.createElement('div');
+  modal.id = id;
+  modal.className = 'modal hidden';
+  modal.setAttribute('role', 'dialog');
+  modal.setAttribute('aria-modal', 'true');
 
-    const backdrop = document.createElement('div');
-    backdrop.className = 'modal-backdrop';
-    backdrop.setAttribute('data-close', '');
+  const backdrop = document.createElement('div');
+  backdrop.className = 'modal-backdrop';
+  backdrop.setAttribute('data-close', '');
 
-    const content = document.createElement('div');
-    content.className = 'modal-content';
+  const content = document.createElement('div');
+  content.className = 'modal-content';
 
-    const header = document.createElement('div');
-    header.className = 'modal-header';
+  const header = document.createElement('div');
+  header.className = 'modal-header';
 
-    const closeBtn = document.createElement('button');
-    closeBtn.className = 'modal-close';
-    closeBtn.setAttribute('aria-label', 'Close');
+  const closeBtn = document.createElement('button');
+  closeBtn.className = 'modal-close';
+  closeBtn.setAttribute('aria-label', 'Close');
 
-    const body = document.createElement('div');
-    body.className = 'modal-body';
+  const body = document.createElement('div');
+  body.className = 'modal-body';
 
-    const input = document.createElement('input');
-    input.type = 'text';
+  const input = document.createElement('input');
+  input.type = 'text';
 
-    body.appendChild(input);
-    header.appendChild(closeBtn);
-    content.appendChild(header);
-    content.appendChild(body);
-    modal.appendChild(backdrop);
-    modal.appendChild(content);
-    document.body.appendChild(modal);
+  body.appendChild(input);
+  header.appendChild(closeBtn);
+  content.appendChild(header);
+  content.appendChild(body);
+  modal.appendChild(backdrop);
+  modal.appendChild(content);
+  document.body.appendChild(modal);
 
-    return modal;
+  return modal;
 }
 
 describe('ModalManager', () => {
-    let modal;
-    let manager;
+  let modal;
+  let manager;
 
+  beforeEach(() => {
+    modal = createModalElement();
+    manager = new ModalManager(modal);
+  });
+
+  afterEach(() => {
+    manager.destroy();
+    while (document.body.firstChild) {
+      document.body.removeChild(document.body.firstChild);
+    }
+    document.body.style.overflow = '';
+  });
+
+  // =========================================================
+  // open()
+  // =========================================================
+
+  describe('open()', () => {
+    test('removes hidden class and adds open class', () => {
+      expect(modal.classList.contains('hidden')).toBe(true);
+      expect(modal.classList.contains('open')).toBe(false);
+
+      manager.open();
+
+      expect(modal.classList.contains('hidden')).toBe(false);
+      expect(modal.classList.contains('open')).toBe(true);
+    });
+
+    test('sets isOpen to true', () => {
+      expect(manager.isOpen()).toBe(false);
+      manager.open();
+      expect(manager.isOpen()).toBe(true);
+    });
+
+    test('prevents body scroll', () => {
+      manager.open();
+      expect(document.body.style.overflow).toBe('hidden');
+    });
+
+    test('does not open again if already open', () => {
+      manager.open();
+      manager.open(); // second call should be no-op
+      expect(manager.isOpen()).toBe(true);
+    });
+
+    test('calls onOpen callback', () => {
+      const onOpen = jest.fn();
+      manager.destroy();
+      manager = new ModalManager(modal, { onOpen });
+      manager.open();
+      expect(onOpen).toHaveBeenCalledTimes(1);
+    });
+
+    test('dispatches modal:open custom event', () => {
+      const handler = jest.fn();
+      modal.addEventListener('modal:open', handler);
+      manager.open();
+      expect(handler).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  // =========================================================
+  // close()
+  // =========================================================
+
+  describe('close()', () => {
     beforeEach(() => {
-        modal = createModalElement();
-        manager = new ModalManager(modal);
+      manager.open();
     });
 
-    afterEach(() => {
-        manager.destroy();
-        while (document.body.firstChild) {
-            document.body.removeChild(document.body.firstChild);
-        }
-        document.body.style.overflow = '';
+    test('removes open class', () => {
+      expect(modal.classList.contains('open')).toBe(true);
+      manager.close();
+      expect(modal.classList.contains('open')).toBe(false);
     });
 
-    // =========================================================
-    // open()
-    // =========================================================
-
-    describe('open()', () => {
-        test('removes hidden class and adds open class', () => {
-            expect(modal.classList.contains('hidden')).toBe(true);
-            expect(modal.classList.contains('open')).toBe(false);
-
-            manager.open();
-
-            expect(modal.classList.contains('hidden')).toBe(false);
-            expect(modal.classList.contains('open')).toBe(true);
-        });
-
-        test('sets isOpen to true', () => {
-            expect(manager.isOpen()).toBe(false);
-            manager.open();
-            expect(manager.isOpen()).toBe(true);
-        });
-
-        test('prevents body scroll', () => {
-            manager.open();
-            expect(document.body.style.overflow).toBe('hidden');
-        });
-
-        test('does not open again if already open', () => {
-            manager.open();
-            manager.open(); // second call should be no-op
-            expect(manager.isOpen()).toBe(true);
-        });
-
-        test('calls onOpen callback', () => {
-            const onOpen = jest.fn();
-            manager.destroy();
-            manager = new ModalManager(modal, { onOpen });
-            manager.open();
-            expect(onOpen).toHaveBeenCalledTimes(1);
-        });
-
-        test('dispatches modal:open custom event', () => {
-            const handler = jest.fn();
-            modal.addEventListener('modal:open', handler);
-            manager.open();
-            expect(handler).toHaveBeenCalledTimes(1);
-        });
+    test('sets isOpen to false immediately', () => {
+      manager.close();
+      expect(manager.isOpen()).toBe(false);
     });
 
-    // =========================================================
-    // close()
-    // =========================================================
-
-    describe('close()', () => {
-        beforeEach(() => {
-            manager.open();
-        });
-
-        test('removes open class', () => {
-            expect(modal.classList.contains('open')).toBe(true);
-            manager.close();
-            expect(modal.classList.contains('open')).toBe(false);
-        });
-
-        test('sets isOpen to false immediately', () => {
-            manager.close();
-            expect(manager.isOpen()).toBe(false);
-        });
-
-        test('restores body scroll when no modals remain open', () => {
-            manager.close();
-            expect(document.body.style.overflow).toBe('');
-        });
-
-        test('adds hidden class after transitionend event fires', () => {
-            manager.close();
-
-            // Immediately after close(): hidden should NOT yet be added —
-            // the close animation is still in progress.
-            // (This is the bug that existed before the fix.)
-            expect(modal.classList.contains('hidden')).toBe(false);
-
-            // Simulate the CSS transition completing
-            const event = new Event('transitionend');
-            Object.defineProperty(event, 'target', { value: modal, writable: false });
-            modal.dispatchEvent(event);
-
-            expect(modal.classList.contains('hidden')).toBe(true);
-        });
-
-        test('adds hidden class via 250ms timeout fallback when transitionend never fires', () => {
-            jest.useFakeTimers();
-
-            manager.close();
-            expect(modal.classList.contains('hidden')).toBe(false);
-
-            // Advance past the fallback timeout (250ms)
-            jest.advanceTimersByTime(300);
-
-            expect(modal.classList.contains('hidden')).toBe(true);
-
-            jest.useRealTimers();
-        });
-
-        test('does not add hidden class if modal is reopened before timeout fires', () => {
-            jest.useFakeTimers();
-
-            manager.close();
-            jest.advanceTimersByTime(100); // halfway through timeout
-
-            // Re-open the modal before the timeout fires
-            manager.open();
-
-            jest.advanceTimersByTime(200); // past original timeout expiry
-
-            // Modal was reopened, so hidden must NOT have been added
-            expect(modal.classList.contains('hidden')).toBe(false);
-            expect(modal.classList.contains('open')).toBe(true);
-
-            jest.useRealTimers();
-        });
-
-        test('calls onClose callback', () => {
-            const onClose = jest.fn();
-            manager.destroy();
-            manager = new ModalManager(modal, { onClose });
-            manager.open();
-            manager.close();
-            expect(onClose).toHaveBeenCalledTimes(1);
-        });
-
-        test('dispatches modal:close custom event', () => {
-            const handler = jest.fn();
-            modal.addEventListener('modal:close', handler);
-            manager.close();
-            expect(handler).toHaveBeenCalledTimes(1);
-        });
-
-        test('is a no-op when modal is already closed', () => {
-            manager.close(); // close from open
-            const onClose = jest.fn();
-            manager.destroy();
-            manager = new ModalManager(modal, { onClose });
-            manager.close(); // call close on an already-closed modal
-            expect(onClose).not.toHaveBeenCalled();
-        });
+    test('restores body scroll when no modals remain open', () => {
+      manager.close();
+      expect(document.body.style.overflow).toBe('');
     });
 
-    // =========================================================
-    // Keyboard interaction
-    // =========================================================
+    test('adds hidden class after transitionend event fires', () => {
+      manager.close();
 
-    describe('keyboard shortcuts', () => {
-        test('Escape key closes an open modal', () => {
-            manager.open();
-            document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
-            expect(manager.isOpen()).toBe(false);
-        });
+      // Immediately after close(): hidden should NOT yet be added —
+      // the close animation is still in progress.
+      // (This is the bug that existed before the fix.)
+      expect(modal.classList.contains('hidden')).toBe(false);
 
-        test('Escape key does nothing when modal is already closed', () => {
-            expect(() => {
-                document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
-            }).not.toThrow();
-        });
+      // Simulate the CSS transition completing
+      const event = new Event('transitionend');
+      Object.defineProperty(event, 'target', { value: modal, writable: false });
+      modal.dispatchEvent(event);
 
-        test('closeOnEscape: false prevents Escape from closing', () => {
-            manager.destroy();
-            manager = new ModalManager(modal, { closeOnEscape: false });
-            manager.open();
-            document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
-            expect(manager.isOpen()).toBe(true);
-        });
+      expect(modal.classList.contains('hidden')).toBe(true);
     });
 
-    // =========================================================
-    // Close triggers
-    // =========================================================
+    test('adds hidden class via 250ms timeout fallback when transitionend never fires', () => {
+      jest.useFakeTimers();
 
-    describe('close triggers', () => {
-        test('clicking the × close button closes the modal', () => {
-            manager.open();
-            modal.querySelector('.modal-close').click();
-            expect(manager.isOpen()).toBe(false);
-        });
+      manager.close();
+      expect(modal.classList.contains('hidden')).toBe(false);
 
-        test('clicking backdrop (data-close) closes the modal', () => {
-            manager.open();
-            modal.querySelector('.modal-backdrop').click();
-            expect(manager.isOpen()).toBe(false);
-        });
+      // Advance past the fallback timeout (250ms)
+      jest.advanceTimersByTime(300);
 
-        test('closeOnBackdrop: false prevents backdrop from closing', () => {
-            manager.destroy();
-            manager = new ModalManager(modal, { closeOnBackdrop: false });
-            manager.open();
-            modal.querySelector('.modal-backdrop').click();
-            expect(manager.isOpen()).toBe(true);
-        });
+      expect(modal.classList.contains('hidden')).toBe(true);
+
+      jest.useRealTimers();
     });
 
-    // =========================================================
-    // destroy()
-    // =========================================================
+    test('does not add hidden class if modal is reopened before timeout fires', () => {
+      jest.useFakeTimers();
 
-    describe('destroy()', () => {
-        test('closes modal if open', () => {
-            manager.open();
-            manager.destroy();
-            expect(manager.isOpen()).toBe(false);
-        });
+      manager.close();
+      jest.advanceTimersByTime(100); // halfway through timeout
 
-        test('does not throw when destroying a closed modal', () => {
-            expect(() => manager.destroy()).not.toThrow();
-        });
+      // Re-open the modal before the timeout fires
+      manager.open();
+
+      jest.advanceTimersByTime(200); // past original timeout expiry
+
+      // Modal was reopened, so hidden must NOT have been added
+      expect(modal.classList.contains('hidden')).toBe(false);
+      expect(modal.classList.contains('open')).toBe(true);
+
+      jest.useRealTimers();
     });
+
+    test('calls onClose callback', () => {
+      const onClose = jest.fn();
+      manager.destroy();
+      manager = new ModalManager(modal, { onClose });
+      manager.open();
+      manager.close();
+      expect(onClose).toHaveBeenCalledTimes(1);
+    });
+
+    test('dispatches modal:close custom event', () => {
+      const handler = jest.fn();
+      modal.addEventListener('modal:close', handler);
+      manager.close();
+      expect(handler).toHaveBeenCalledTimes(1);
+    });
+
+    test('is a no-op when modal is already closed', () => {
+      manager.close(); // close from open
+      const onClose = jest.fn();
+      manager.destroy();
+      manager = new ModalManager(modal, { onClose });
+      manager.close(); // call close on an already-closed modal
+      expect(onClose).not.toHaveBeenCalled();
+    });
+  });
+
+  // =========================================================
+  // Keyboard interaction
+  // =========================================================
+
+  describe('keyboard shortcuts', () => {
+    test('Escape key closes an open modal', () => {
+      manager.open();
+      document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
+      expect(manager.isOpen()).toBe(false);
+    });
+
+    test('Escape key does nothing when modal is already closed', () => {
+      expect(() => {
+        document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
+      }).not.toThrow();
+    });
+
+    test('closeOnEscape: false prevents Escape from closing', () => {
+      manager.destroy();
+      manager = new ModalManager(modal, { closeOnEscape: false });
+      manager.open();
+      document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', bubbles: true }));
+      expect(manager.isOpen()).toBe(true);
+    });
+  });
+
+  // =========================================================
+  // Close triggers
+  // =========================================================
+
+  describe('close triggers', () => {
+    test('clicking the × close button closes the modal', () => {
+      manager.open();
+      modal.querySelector('.modal-close').click();
+      expect(manager.isOpen()).toBe(false);
+    });
+
+    test('clicking backdrop (data-close) closes the modal', () => {
+      manager.open();
+      modal.querySelector('.modal-backdrop').click();
+      expect(manager.isOpen()).toBe(false);
+    });
+
+    test('closeOnBackdrop: false prevents backdrop from closing', () => {
+      manager.destroy();
+      manager = new ModalManager(modal, { closeOnBackdrop: false });
+      manager.open();
+      modal.querySelector('.modal-backdrop').click();
+      expect(manager.isOpen()).toBe(true);
+    });
+  });
+
+  // =========================================================
+  // destroy()
+  // =========================================================
+
+  describe('destroy()', () => {
+    test('closes modal if open', () => {
+      manager.open();
+      manager.destroy();
+      expect(manager.isOpen()).toBe(false);
+    });
+
+    test('does not throw when destroying a closed modal', () => {
+      expect(() => manager.destroy()).not.toThrow();
+    });
+  });
 });

tests/no-diagnostic-logs.test.js

@@ -0,0 +1,19 @@
+/**
+ * Tests ensuring production code does not contain leftover diagnostic console.log statements.
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+describe('No leftover diagnostic console.log statements', () => {
+  const rootDir = path.resolve(__dirname, '..');
+  const filesToCheck = ['src/main.js', 'src/renderer.js'];
+
+  filesToCheck.forEach((relativePath) => {
+    test(`${relativePath} has no console.log statements`, () => {
+      const content = fs.readFileSync(path.join(rootDir, relativePath), 'utf8');
+      const matches = content.match(/console\.log\(/g) || [];
+      expect(matches).toHaveLength(0);
+    });
+  });
+});

tests/pdf-operations.test.js

@@ -0,0 +1,92 @@
+/**
+ * PDF Operations Utilities Test Suite
+ * Tests for helper functions and logic patterns
+ * @version 4.3.0
+ */
+
+describe('PDFOperations Utilities', () => {
+  describe('page range parsing', () => {
+    it('should parse single page numbers', () => {
+      // Test logic: parsing "1" should extract page index 0
+      const pages = [0]; // Parsed result
+
+      expect(pages.length).toBe(1);
+      expect(pages[0]).toBe(0);
+    });
+
+    it('should parse page ranges', () => {
+      // Test logic: parsing "1-3" should extract pages 0, 1, 2
+      const pages = [0, 1, 2]; // Expected result
+
+      expect(pages.length).toBe(3);
+      expect(pages).toEqual([0, 1, 2]);
+    });
+
+    it('should handle multiple ranges', () => {
+      // Test logic: parsing "1-2,4-5" should extract pages 0,1,3,4
+      const pages = [0, 1, 3, 4]; // Expected result
+
+      expect(pages.length).toBe(4);
+      expect(pages).toEqual([0, 1, 3, 4]);
+    });
+
+    it('should sort pages in ascending order', () => {
+      const unsorted = [2, 0, 3, 1];
+      const sorted = unsorted.sort((a, b) => a - b);
+
+      expect(sorted).toEqual([0, 1, 2, 3]);
+    });
+  });
+
+  describe('hex color conversion', () => {
+    it('should validate hex color format', () => {
+      const validHex = '#FF5733';
+      const isValid = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.test(validHex);
+
+      expect(isValid).toBe(true);
+    });
+
+    it('should detect invalid hex colors', () => {
+      const invalidColors = ['#GG5733', '#12345', 'notahex'];
+
+      invalidColors.forEach((color) => {
+        const isValid = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.test(color);
+        expect(isValid).toBe(false);
+      });
+    });
+  });
+
+  describe('error handling', () => {
+    it('should handle empty input', () => {
+      const input = '';
+      expect(input.length).toBe(0);
+      // Should not process empty strings
+      expect(input === '').toBe(true);
+    });
+
+    it('should handle invalid page numbers', () => {
+      const testPages = [
+        { input: '0', isValid: false },
+        { input: '-1', isValid: false },
+        { input: 'abc', isValid: false },
+        { input: '1', isValid: true },
+        { input: '5', isValid: true },
+      ];
+
+      testPages.forEach(({ input, isValid }) => {
+        const num = parseInt(input);
+
+        if (isNaN(num)) {
+          // Non-numeric string
+          expect(isValid).toBe(false);
+        } else if (num < 1) {
+          // Zero or negative
+          expect(isValid).toBe(false);
+        } else {
+          // Positive number
+          expect(isValid).toBe(true);
+        }
+      });
+    });
+  });
+});

tests/plugin-api.test.js

@@ -0,0 +1,29 @@
+const { PluginAPI } = require('../src/plugins/plugin-api');
+
+describe('PluginAPI', () => {
+  test('has default no-op lifecycle methods', () => {
+    const plugin = new PluginAPI();
+    expect(() => plugin.init({})).not.toThrow();
+    expect(() => plugin.activate()).not.toThrow();
+    expect(() => plugin.deactivate()).not.toThrow();
+  });
+
+  test('getManifest returns null by default', () => {
+    const plugin = new PluginAPI();
+    expect(plugin.getManifest()).toBeNull();
+  });
+
+  test('subclass can override init', () => {
+    let called = false;
+    class MyPlugin extends PluginAPI {
+      init(context) {
+        called = true;
+        this.context = context;
+      }
+    }
+    const p = new MyPlugin();
+    p.init({ foo: 'bar' });
+    expect(called).toBe(true);
+    expect(p.context.foo).toBe('bar');
+  });
+});

tests/plugin-context.test.js

@@ -0,0 +1,90 @@
+const { PluginContext } = require('../src/plugins/plugin-context');
+const { EventBus } = require('../src/plugins/event-bus');
+
+describe('PluginContext', () => {
+  let context;
+  let mockDeps;
+
+  beforeEach(() => {
+    mockDeps = {
+      pluginId: 'test-plugin',
+      sidebar: { registerPanel: jest.fn() },
+      commands: { register: jest.fn() },
+      statusBar: { registerIndicator: jest.fn() },
+      eventBus: new EventBus(),
+      settings: { get: jest.fn(), set: jest.fn(), onChanged: jest.fn() },
+      editor: {
+        getContent: jest.fn(),
+        getSelection: jest.fn(),
+        insertAtCursor: jest.fn(),
+        onContentChanged: jest.fn(),
+      },
+      ipc: { invoke: jest.fn(), on: jest.fn() },
+      exportHooks: { preHooks: [], postHooks: [] },
+    };
+    context = new PluginContext(mockDeps);
+  });
+
+  test('exposes sidebar.registerPanel with namespaced id', () => {
+    const handler = jest.fn();
+    context.sidebar.registerPanel('my-panel', { icon: 'test', title: 'Test', render: handler });
+    expect(mockDeps.sidebar.registerPanel).toHaveBeenCalledWith('test-plugin:my-panel', {
+      icon: 'test',
+      title: 'Test',
+      render: handler,
+    });
+  });
+
+  test('exposes commands.register with crash-safe wrapper', () => {
+    const badHandler = () => {
+      throw new Error('boom');
+    };
+    context.commands.register('bad-cmd', 'Bad', badHandler, 'Ctrl+Alt+T');
+    const registeredHandler = mockDeps.commands.register.mock.calls[0][2];
+    expect(() => registeredHandler()).not.toThrow();
+  });
+
+  test('exposes settings.get/set scoped to plugin', () => {
+    context.settings.get('myKey');
+    context.settings.set('myKey', 'myValue');
+    expect(mockDeps.settings.get).toHaveBeenCalledWith('plugins.test-plugin.myKey');
+    expect(mockDeps.settings.set).toHaveBeenCalledWith('plugins.test-plugin.myKey', 'myValue');
+  });
+
+  test('exposes editor methods', () => {
+    context.editor.getContent();
+    context.editor.getSelection();
+    expect(mockDeps.editor.getContent).toHaveBeenCalled();
+    expect(mockDeps.editor.getSelection).toHaveBeenCalled();
+  });
+
+  test('exposes events via event bus', () => {
+    const handler = jest.fn();
+    context.events.on('test:event', handler);
+    context.events.emit('test:event', { data: 1 });
+    expect(handler).toHaveBeenCalledWith({ data: 1 });
+  });
+
+  test('exposes events.hasHandler', () => {
+    expect(context.events.hasHandler('no:such')).toBe(false);
+    context.events.on('exists:event', () => {});
+    expect(context.events.hasHandler('exists:event')).toBe(true);
+  });
+
+  test('exposes ipc.invoke', () => {
+    context.ipc.invoke('test:channel', { a: 1 });
+    expect(mockDeps.ipc.invoke).toHaveBeenCalledWith('test:channel', { a: 1 });
+  });
+
+  test('exposes exports.registerPreHook', () => {
+    const handler = jest.fn();
+    context.exports.registerPreHook(handler);
+    expect(mockDeps.exportHooks.preHooks).toContain(handler);
+  });
+
+  test('exposes exports.registerPostHook', () => {
+    const handler = jest.fn();
+    context.exports.registerPostHook(handler);
+    expect(mockDeps.exportHooks.postHooks).toContain(handler);
+  });
+});

tests/plugin-loader.test.js

@@ -0,0 +1,116 @@
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+const { PluginLoader } = require('../src/plugins/plugin-loader');
+
+describe('PluginLoader', () => {
+  let tempDir;
+
+  beforeEach(() => {
+    tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'plugin-test-'));
+  });
+
+  afterEach(() => {
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  });
+
+  function writeManifest(dir, manifest) {
+    fs.mkdirSync(dir, { recursive: true });
+    fs.writeFileSync(path.join(dir, 'manifest.json'), JSON.stringify(manifest, null, 2));
+  }
+
+  test('discoverPlugins — finds manifests in built-in directory', () => {
+    const pluginDir = path.join(tempDir, 'my-plugin');
+    writeManifest(pluginDir, {
+      id: 'my-plugin',
+      name: 'My Plugin',
+      version: '1.0.0',
+      description: 'Test',
+    });
+    const loader = new PluginLoader([tempDir]);
+    const plugins = loader.discoverPlugins();
+    expect(plugins).toHaveLength(1);
+    expect(plugins[0].id).toBe('my-plugin');
+  });
+
+  test('discoverPlugins — skips directories without manifest.json', () => {
+    const emptyDir = path.join(tempDir, 'no-manifest');
+    fs.mkdirSync(emptyDir, { recursive: true });
+    const loader = new PluginLoader([emptyDir]);
+    const plugins = loader.discoverPlugins();
+    expect(plugins).toHaveLength(0);
+  });
+
+  test('validateManifest — accepts valid manifest', () => {
+    const manifest = {
+      id: 'test-plugin',
+      name: 'Test Plugin',
+      version: '1.0.0',
+      description: 'A test plugin',
+    };
+    const loader = new PluginLoader([]);
+    expect(loader.validateManifest(manifest)).toBe(true);
+  });
+
+  test('validateManifest — rejects manifest missing id', () => {
+    const manifest = { name: 'No ID', version: '1.0.0', description: 'x' };
+    const loader = new PluginLoader([]);
+    expect(() => loader.validateManifest(manifest)).toThrow(/id/);
+  });
+
+  test('validateManifest — rejects manifest missing name', () => {
+    const manifest = { id: 'test', version: '1.0.0', description: 'x' };
+    const loader = new PluginLoader([]);
+    expect(() => loader.validateManifest(manifest)).toThrow(/name/);
+  });
+
+  test('validateManifest — rejects manifest with duplicate id', () => {
+    const loader = new PluginLoader([]);
+    loader.loadedIds = new Set(['existing-plugin']);
+    expect(() =>
+      loader.validateManifest({
+        id: 'existing-plugin',
+        name: 'Dup',
+        version: '1.0.0',
+        description: 'x',
+      })
+    ).toThrow(/duplicate/i);
+  });
+
+  test('discoverPlugins — loads index.js Plugin export if present', () => {
+    const pluginDir = path.join(tempDir, 'with-index');
+    writeManifest(pluginDir, {
+      id: 'with-index',
+      name: 'With Index',
+      version: '1.0.0',
+      description: 'Test',
+    });
+    // Write a simple index.js with a Plugin export
+    fs.writeFileSync(
+      path.join(pluginDir, 'index.js'),
+      `
+class SimplePlugin { init() {} }
+module.exports = { Plugin: SimplePlugin };
+`
+    );
+    const loader = new PluginLoader([tempDir]);
+    const plugins = loader.discoverPlugins();
+    expect(plugins).toHaveLength(1);
+    expect(plugins[0].PluginClass).toBeDefined();
+    expect(plugins[0].PluginClass.name).toBe('SimplePlugin');
+  });
+
+  test('discoverPlugins — continues if one plugin fails to load', () => {
+    const badDir = path.join(tempDir, 'bad');
+    writeManifest(badDir, { id: 'bad', name: 'Bad', version: '1.0.0', description: 'Broken' });
+    fs.writeFileSync(path.join(badDir, 'index.js'), 'throw new Error("broken");');
+
+    const goodDir = path.join(tempDir, 'good');
+    writeManifest(goodDir, { id: 'good', name: 'Good', version: '1.0.0', description: 'Works' });
+
+    const loader = new PluginLoader([tempDir]);
+    const plugins = loader.discoverPlugins();
+    expect(plugins).toHaveLength(1);
+    expect(plugins[0].id).toBe('good');
+  });
+});

tests/plugin-registry.test.js

@@ -0,0 +1,156 @@
+const { PluginRegistry } = require('../src/plugins/plugin-registry');
+const { PluginAPI } = require('../src/plugins/plugin-api');
+const { EventBus } = require('../src/plugins/event-bus');
+
+class TestPlugin extends PluginAPI {
+  init(context) {
+    this.initialized = true;
+    this.ctx = context;
+  }
+  activate() {
+    this.activated = true;
+  }
+  deactivate() {
+    this.deactivated = true;
+  }
+}
+
+describe('PluginRegistry', () => {
+  let registry;
+  let mockDeps;
+
+  beforeEach(() => {
+    mockDeps = {
+      sidebar: { registerPanel: jest.fn() },
+      commands: { register: jest.fn() },
+      statusBar: { registerIndicator: jest.fn() },
+      eventBus: new EventBus(),
+      settings: { get: jest.fn(), set: jest.fn(), onChanged: jest.fn() },
+      editor: {
+        getContent: jest.fn(() => ''),
+        getSelection: jest.fn(() => ''),
+        insertAtCursor: jest.fn(),
+        onContentChanged: jest.fn(),
+      },
+      ipc: { invoke: jest.fn(), on: jest.fn() },
+    };
+    registry = new PluginRegistry(mockDeps);
+  });
+
+  test('register — stores plugin and calls init', () => {
+    registry.register({
+      id: 'test',
+      name: 'Test',
+      version: '1.0.0',
+      description: 'desc',
+      manifest: {},
+      PluginClass: TestPlugin,
+      dir: '/tmp/test',
+    });
+    const entry = registry.getPlugin('test');
+    expect(entry).toBeDefined();
+    expect(entry.instance.initialized).toBe(true);
+  });
+
+  test('register — works without PluginClass', () => {
+    registry.register({
+      id: 'manifest-only',
+      name: 'Manifest Only',
+      version: '1.0.0',
+      description: 'desc',
+      manifest: {},
+      PluginClass: null,
+      dir: '/tmp/test',
+    });
+    expect(registry.getPlugin('manifest-only')).toBeDefined();
+  });
+
+  test('register — init error does not crash, plugin not registered', () => {
+    class BadPlugin extends PluginAPI {
+      init() {
+        throw new Error('init fail');
+      }
+    }
+    expect(() => {
+      registry.register({
+        id: 'bad',
+        name: 'Bad',
+        version: '1.0.0',
+        description: 'desc',
+        manifest: {},
+        PluginClass: BadPlugin,
+        dir: '/tmp/test',
+      });
+    }).not.toThrow();
+    expect(registry.getPlugin('bad')).toBeUndefined();
+  });
+
+  test('getPlugin — returns undefined for unknown', () => {
+    expect(registry.getPlugin('nope')).toBeUndefined();
+  });
+
+  test('getAll — returns all registered plugins', () => {
+    registry.register({
+      id: 'a',
+      name: 'A',
+      version: '1',
+      description: '',
+      manifest: {},
+      PluginClass: null,
+      dir: '',
+    });
+    registry.register({
+      id: 'b',
+      name: 'B',
+      version: '1',
+      description: '',
+      manifest: {},
+      PluginClass: null,
+      dir: '',
+    });
+    expect(registry.getAll()).toHaveLength(2);
+  });
+
+  test('activate — calls activate on plugin instance', () => {
+    registry.register({
+      id: 'test',
+      name: 'Test',
+      version: '1',
+      description: '',
+      manifest: {},
+      PluginClass: TestPlugin,
+      dir: '',
+    });
+    registry.activate('test');
+    expect(registry.getPlugin('test').instance.activated).toBe(true);
+  });
+
+  test('deactivate — calls deactivate on plugin instance', () => {
+    registry.register({
+      id: 'test',
+      name: 'Test',
+      version: '1',
+      description: '',
+      manifest: {},
+      PluginClass: TestPlugin,
+      dir: '',
+    });
+    registry.deactivate('test');
+    expect(registry.getPlugin('test').instance.deactivated).toBe(true);
+  });
+
+  test('exportHooks are available and populated', () => {
+    registry.register({
+      id: 'test',
+      name: 'Test',
+      version: '1',
+      description: '',
+      manifest: {},
+      PluginClass: TestPlugin,
+      dir: '',
+    });
+    const handler = jest.fn();
+    registry.getPlugin('test').instance.ctx.exports.registerPreHook(handler);
+    expect(registry.exportHooks.preHooks).toContain(handler);
+  });
+});

tests/preload.test.js

@@ -54,6 +54,14 @@ describe('Preload Security', () => {
       'save-pasted-image',
       'load-template',
       'list-directory',
+      'read-file',
+      'write-file',
+      'delete-file',
+      'ensure-directory',
+      'path-exists',
+      'is-directory',
+      'copy-path',
+      'move-path',
       'open-file-path',
       'git-status',
       'git-stage',
@@ -66,7 +74,7 @@ describe('Preload Security', () => {
       'execute-code',
       'show-pdf-editor-from-toolbar',
       'menu-open',
-      'export'
+      'export',
     ];
 
     const EXPECTED_RECEIVE_CHANNELS = [
@@ -119,7 +127,7 @@ describe('Preload Security', () => {
       'load-template-menu',
       'toggle-command-palette',
       'toggle-sidebar-panel',
-      'toggle-bottom-panel'
+      'toggle-bottom-panel',
     ];
 
     test('should define all expected send channels', () => {

tests/print-preview.test.js

@@ -8,13 +8,17 @@
  */
 
 describe('PrintPreview', () => {
-    beforeEach(() => {
-        // Mock electron require for executePrint
-        jest.mock('electron', () => ({
-            ipcRenderer: { send: jest.fn(), invoke: jest.fn() }
-        }), { virtual: true });
+  beforeEach(() => {
+    // Mock electron require for executePrint
+    jest.mock(
+      'electron',
+      () => ({
+        ipcRenderer: { send: jest.fn(), invoke: jest.fn() },
+      }),
+      { virtual: true }
+    );
 
-        document.body.innerHTML = `
+    document.body.innerHTML = `
             <div class="dialog-overlay hidden" id="print-preview-overlay">
                 <button id="print-preview-close"></button>
                 <button id="print-cancel"></button>
@@ -31,79 +35,87 @@ describe('PrintPreview', () => {
                 <iframe id="print-preview-frame"></iframe>
             </div>
         `;
-    });
+  });
 
-    test('getOptions returns default values', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        const options = preview.getOptions();
-        expect(options.paperSize).toBe('A4');
-        expect(options.orientation).toBe('portrait');
-        expect(options.scale).toBe(100);
-        expect(options.headers).toBe(true);
-        expect(options.background).toBe(true);
-        expect(options.pages).toBe('all');
-        expect(options.margins).toBe('default');
-        expect(options.pageRange).toBe('');
-    });
+  test('getOptions returns default values', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    const options = preview.getOptions();
+    expect(options.paperSize).toBe('A4');
+    expect(options.orientation).toBe('portrait');
+    expect(options.scale).toBe(100);
+    expect(options.headers).toBe(true);
+    expect(options.background).toBe(true);
+    expect(options.pages).toBe('all');
+    expect(options.margins).toBe('default');
+    expect(options.pageRange).toBe('');
+  });
 
-    test('opens and closes', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        preview.open('<p>Test</p>');
-        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(false);
-        preview.close();
-        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
-    });
+  test('opens and closes', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    preview.open('<p>Test</p>');
+    expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(
+      false
+    );
+    preview.close();
+    expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(
+      true
+    );
+  });
 
-    test('updateScaleLabel reflects slider value', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        document.getElementById('print-scale').value = '75';
-        preview.updateScaleLabel();
-        expect(document.getElementById('print-scale-value').textContent).toBe('75%');
-    });
+  test('updateScaleLabel reflects slider value', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    document.getElementById('print-scale').value = '75';
+    preview.updateScaleLabel();
+    expect(document.getElementById('print-scale-value').textContent).toBe('75%');
+  });
 
-    test('close button closes preview', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        preview.open('<p>Test</p>');
-        document.getElementById('print-preview-close').click();
-        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
-    });
+  test('close button closes preview', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    preview.open('<p>Test</p>');
+    document.getElementById('print-preview-close').click();
+    expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(
+      true
+    );
+  });
 
-    test('cancel button closes preview', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        preview.open('<p>Test</p>');
-        document.getElementById('print-cancel').click();
-        expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(true);
-    });
+  test('cancel button closes preview', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    preview.open('<p>Test</p>');
+    document.getElementById('print-cancel').click();
+    expect(document.getElementById('print-preview-overlay').classList.contains('hidden')).toBe(
+      true
+    );
+  });
 
-    test('getOptions reflects changed values', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
+  test('getOptions reflects changed values', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
 
-        // Change paper size to Letter
-        const paperSelect = document.getElementById('print-paper-size');
-        paperSelect.value = 'Letter';
+    // Change paper size to Letter
+    const paperSelect = document.getElementById('print-paper-size');
+    paperSelect.value = 'Letter';
 
-        // Change scale
-        document.getElementById('print-scale').value = '50';
+    // Change scale
+    document.getElementById('print-scale').value = '50';
 
-        // Uncheck headers
-        document.getElementById('print-headers').checked = false;
+    // Uncheck headers
+    document.getElementById('print-headers').checked = false;
 
-        const options = preview.getOptions();
-        expect(options.paperSize).toBe('Letter');
-        expect(options.scale).toBe(50);
-        expect(options.headers).toBe(false);
-    });
+    const options = preview.getOptions();
+    expect(options.paperSize).toBe('Letter');
+    expect(options.scale).toBe(50);
+    expect(options.headers).toBe(false);
+  });
 
-    test('stores last content for refresh', () => {
-        const { PrintPreview } = require('../src/print-preview');
-        const preview = new PrintPreview();
-        preview.open('<p>Hello World</p>');
-        expect(preview._lastContent).toBe('<p>Hello World</p>');
-    });
+  test('stores last content for refresh', () => {
+    const { PrintPreview } = require('../src/print-preview');
+    const preview = new PrintPreview();
+    preview.open('<p>Hello World</p>');
+    expect(preview._lastContent).toBe('<p>Hello World</p>');
+  });
 });

tests/project-manager.test.js

@@ -0,0 +1,134 @@
+const { ProjectManager } = require('../src/plugins/built-in/writing-studio/project-manager');
+
+describe('ProjectManager', () => {
+  let pm;
+  let files;
+
+  beforeEach(() => {
+    files = {};
+    pm = new ProjectManager({
+      readFile: (p) => files[p] || null,
+      writeFile: (p, c) => {
+        files[p] = c;
+      },
+      fileExists: (p) => p in files,
+      listDir: (p) =>
+        Object.keys(files)
+          .filter((f) => f.startsWith(p))
+          .map((f) => f.slice(p.length + 1)),
+    });
+  });
+
+  test('createProject writes .project.json', () => {
+    const project = pm.createProject('/manuscripts/novel', {
+      title: 'My Novel',
+      type: 'manuscript',
+      targetWords: 80000,
+    });
+    expect(project.title).toBe('My Novel');
+    expect(files['/manuscripts/novel/.project.json']).toBeDefined();
+    const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);
+    expect(parsed.target.words).toBe(80000);
+  });
+
+  test('loadProject reads and returns project data', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [],
+      metadata: {},
+    });
+    const project = pm.loadProject('/manuscripts/novel');
+    expect(project.title).toBe('Test');
+  });
+
+  test('loadProject returns null if no project file', () => {
+    expect(pm.loadProject('/nonexistent')).toBeNull();
+  });
+
+  test('addChapter appends chapter and saves', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [],
+      metadata: {},
+    });
+    pm.addChapter('/manuscripts/novel', {
+      file: '01-chapter.md',
+      title: 'Chapter One',
+      status: 'draft',
+    });
+    const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);
+    expect(parsed.chapters.length).toBe(1);
+    expect(parsed.chapters[0].title).toBe('Chapter One');
+  });
+
+  test('compileManuscript concatenates chapter files', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [
+        { file: '01.md', title: 'One', status: 'draft' },
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
+    });
+    files['/manuscripts/novel/01.md'] = 'First chapter content.';
+    files['/manuscripts/novel/02.md'] = 'Second chapter content.';
+    const result = pm.compileManuscript('/manuscripts/novel');
+    expect(result).toBe('First chapter content.\n\n---\n\nSecond chapter content.');
+  });
+
+  test('compileManuscript skips missing files', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [
+        { file: '01.md', title: 'One', status: 'draft' },
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
+    });
+    files['/manuscripts/novel/01.md'] = 'Only chapter one.';
+    const result = pm.compileManuscript('/manuscripts/novel');
+    expect(result).toBe('Only chapter one.');
+  });
+
+  test('getStats returns total word count across chapters', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [
+        { file: '01.md', title: 'One', status: 'draft' },
+        { file: '02.md', title: 'Two', status: 'draft' },
+      ],
+      metadata: {},
+    });
+    files['/manuscripts/novel/01.md'] = 'word '.repeat(100).trim();
+    files['/manuscripts/novel/02.md'] = 'more '.repeat(50).trim();
+    const stats = pm.getStats('/manuscripts/novel');
+    expect(stats.totalWords).toBeGreaterThan(0);
+    expect(stats.chapterCount).toBe(2);
+    expect(stats.targetWords).toBe(50000);
+    expect(stats.pctComplete).toBeDefined();
+  });
+
+  test('updateChapter modifies a chapter by index', () => {
+    files['/manuscripts/novel/.project.json'] = JSON.stringify({
+      title: 'Test',
+      type: 'manuscript',
+      target: { words: 50000 },
+      chapters: [{ file: '01.md', title: 'Old Title', status: 'draft' }],
+      metadata: {},
+    });
+    pm.updateChapter('/manuscripts/novel', 0, { title: 'New Title', status: 'revised' });
+    const parsed = JSON.parse(files['/manuscripts/novel/.project.json']);
+    expect(parsed.chapters[0].title).toBe('New Title');
+    expect(parsed.chapters[0].status).toBe('revised');
+  });
+});

tests/project-meta.test.js

@@ -0,0 +1,21 @@
+/**
+ * Tests for project metadata consistency
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+describe('Project version consistency', () => {
+  const rootDir = path.resolve(__dirname, '..');
+  const packageJson = JSON.parse(fs.readFileSync(path.join(rootDir, 'package.json'), 'utf8'));
+  const readme = fs.readFileSync(path.join(rootDir, 'README.md'), 'utf8');
+
+  test('README version matches package.json version', () => {
+    const version = packageJson.version;
+    expect(readme).toContain(`v${version}`);
+  });
+
+  test('README contains current version string', () => {
+    expect(readme).toContain(`v${packageJson.version}`);
+  });
+});