chore(release): bump v4.7.1 → v4.8.0; Prettier pass on overnight-session files

12 commits on master since v4.7.1 baseline, taking tests 524 → 914 across
27 new suites. This commit:
- Bumps package.json + README version to v4.8.0 (additive features → semver minor)
- Applies Prettier formatting to all files touched during the overnight
  session so release build is reproducible from a clean repo

New in v4.8.0:
- PDF encryption close-out (D1)
- KaTeX rendering test coverage
- Autosave buffer + crash recovery banner
- Daily notes + workspace search + doc-aware Q&A
- Search sidebar panel + Ask mode
- Status bar: word count, reading time, Flesch-Kincaid grade
- Footnote hover preview
- Smart paste (URL → link, CSV/TSV → table)
- Daily notes menu item + sidebar panel + Q&A deep-link
- Daily templates gallery
- Pluggable DocQA engine (TF-idF default + lazy neural embeddings)

Amit Haridas

tests/main/DocQA.test.js

@@ -144,9 +144,7 @@ describe('DocQA.ask with a custom engine', () => {
   test('passes the question + chunks to a custom engine.rank()', async () => {
     const customEngine = {
       isNeural: true,
-      rank: jest.fn().mockResolvedValue([
-        { filePath: '/x.md#0', snippet: 'ranked', score: 0.9 },
-      ]),
+      rank: jest.fn().mockResolvedValue([{ filePath: '/x.md#0', snippet: 'ranked', score: 0.9 }]),
     };
     const r = await DocQA.ask({ question: 'rust', files, engine: customEngine });
     expect(customEngine.rank).toHaveBeenCalled();