feat(KB-029): merge kb/kb-029 (auto-resolved)
- chore(KB-029): add changeset for file browser feature
- docs(KB-029): complete Step 13 — add file browser documentation to README
- feat(KB-029): complete Step 10 — add file browser and editor styles
- feat(KB-029): complete Steps 5-11 — hooks, components, styles, and integration
- feat(KB-029): complete Step 10 — integrate Files tab with TaskDetailModal
- fix(KB-029): restore file-service.test.ts
- feat(KB-029): complete Steps 7-9 — create FileBrowser, FileEditor, and FileBrowserModal components
- feat(KB-029): complete Steps 5-6 — create file browser and editor hooks
- feat(KB-029): complete Step 4 — add client-side file API functions
- fix(KB-029): restore accidentally deleted file-service.test.ts
- feat(KB-029): complete Step 3 — add file API routes with tests
- feat(KB-029): complete Step 3 — add file API routes with fixed tests
- feat(KB-029): complete Step 3 — add file API routes to routes.ts
- feat(KB-029): complete Step 2 — create server-side file service with tests
- feat(KB-029): complete Step 2 — create server-side file service (revised API)
- feat(KB-029): complete Step 2 — create server-side file service
- feat(KB-029): complete Step 1 — add CodeMirror 6 dependencies
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