feat: bump to v4.1.0 and add CI/CD release pipeline

- Bump version to 4.1.0 in package.json and index.html
- Add build:local script for combined Linux + Windows local builds
- Add CI workflow: runs tests on push/PR to master
- Add Release workflow: tag-triggered (v*), parallel Linux + Windows
  builds, publishes all packages to GitHub Releases

Amit Haridas

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test

.github/workflows/release.yml

@@ -0,0 +1,99 @@
+name: Release
+
+on:
+  push:
+    tags: ['v*']
+
+permissions:
+  contents: write
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          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: Run tests
+        run: npm test
+
+      - name: Build Linux packages
+        run: npm run build:linux
+
+      - name: Upload Linux artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-artifacts
+          path: |
+            dist/*.deb
+            dist/*.AppImage
+            dist/*.snap
+            dist/*.rpm
+          retention-days: 5
+
+  build-windows:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          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: Upload Windows artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-artifacts
+          path: |
+            dist/*.exe
+            dist/*-win.zip
+          retention-days: 5
+
+  release:
+    needs: [build-linux, build-windows]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Download Linux artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: linux-artifacts
+          path: dist
+
+      - name: Download Windows artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: windows-artifacts
+          path: dist
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          generate_release_notes: true
+          files: dist/*