chore(openspec): drop 9 superseded proposals + 11 stub archive files

Drop 9 batch proposals that are superseded by the boocode-lift-analysis
(boocontext-audit, conductor upgrades, self-healing/verify-gate skills):
add-3tier-memory, import-llm-evaluator, import-pregel-engine, plugin-platform,
conductor-evolution, code-intelligence-upgrade, dev-workflow, ui-overhaul,
agent-reliability.

Delete 11 stub archive files (49-66B each, 'Status: Shipped. Archived.' only)
that provide zero documentation value over the existing CHANGELOG.md + git tags.

openspec/changes/enhanced-file-panel/design.md

@@ -0,0 +1,64 @@
+# Enhanced File Panel — Design Decisions
+
+## D1: Diff preference system
+
+A `useDiffPreferences` hook manages three stored preferences:
+
+```typescript
+interface DiffPreferences {
+  layout: 'unified' | 'split';    // default: 'unified'
+  wrapLines: boolean;              // default: false
+  hideWhitespace: boolean;         // default: false
+}
+```
+
+Persisted via localStorage key `boocode.diff.preferences`.
+**Reference**: `/opt/forks/paseo/hooks/use-changes-preferences/storage.ts`
+
+## D2: Side-by-side diff layout
+
+Split layout renders two columns (left = removals, right = additions) with aligned line numbers.
+
+Algorithm (adapted from Paseo `diff-layout.ts` `buildSplitDiffRows`):
+1. Parse unified diff into hunks (reuse existing `splitDiffByFile`)
+2. Group remove lines into pendingRemovals, add lines into pendingAdditions
+3. Flush paired rows when encountering context lines
+4. Unpaired lines get an empty cell on one side
+
+## D3: Hide whitespace (server-side)
+
+`GET /api/projects/:id/git/diff` gains optional `whitespace=1` query param.
+When set, `git diff` appends `-w` (`--ignore-all-space`).
+
+## D4: Wrap lines (CSS-only)
+
+When `wrapLines` is true: `white-space: pre-wrap; overflow-wrap: anywhere`
+replaces `white-space: pre; overflow-x: auto`. Gutter stays unwrapped.
+
+## D5: Expand/Collapse all
+
+`allExpanded` computed as `files.every(f => expandedPaths.has(f.path))`.
+Toggle button adds all paths to expandedPaths or clears them.
+
+## D6: Inline diff comments
+
+Data model:
+```typescript
+interface DiffComment {
+  id: string; filePath: string; side: 'old' | 'new';
+  lineNumber: number; body: string;
+  createdAt: number; updatedAt: number;
+}
+```
+
+Zustand store with localStorage persistence, keyed by `${sessionId}:${mode}`.
+
+## D7: File editing
+
+Double-click file in tree → fetch content via `view_file` → textarea →
+Save calls `POST /api/projects/:id/write_file` → triggers `git_diff_refresh`.
+Path validated via existing `pathGuard`.
+
+## D8: No DB / no WS frames / no contract changes
+
+All new state is client-side (localStorage, React state, Zustand).

openspec/changes/enhanced-file-panel/proposal.md

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+# Enhanced file panel — diff display modes, inline comments, and in-browser file editing
+
+## Why
+
+BooCode's right-rail file panel has a solid foundation: a file tree (read-only), a Git diff tab
+with unified display and stage/commit/discard. But it lacks features users expect from a modern
+code review surface:
+
+1. **Side-by-side diff** — was deferred under YAGNI in v1. The current unified-only view is hard
+   to read on wide files and wastes horizontal space on desktop.
+2. **Hide whitespace** — meaningless whitespace changes clutter diffs in code-generation workflows.
+3. **Wrap long lines** — unified diffs of long lines require horizontal scrolling.
+4. **Expand/collapse all** — only per-file expand exists; bulk toggling is missing.
+5. **Inline diff comments** — was explicitly out-of-scope in v1. The user cannot annotate diffs.
+6. **In-browser file editing** — the file tree is read-only. Editing requires agent tool calls or terminal.
+
+## What Changes
+
+### Frontend
+
+- **GitDiffView.tsx** — toolbar row with: Unified/Split toggle, Hide whitespace toggle, Wrap lines
+  toggle, Expand/Collapse all, Refresh (existing)
+- **Diff rendering** — split-layout renderer (two panels side-by-side, aligned line numbers),
+  CSS `pre-wrap` for wrapped lines
+- **Inline comments** — `InlineReviewGutterCell` (hover → + button), `InlineReviewThread`,
+  `InlineReviewEditor` (textarea saved via Zustand store)
+- **Comment storage** — Zustand store persisted to localStorage, keyed by diff context
+- **File editing** — double-click file in tree → inline textarea → Save/Cancel → server write API
+- **Preferences hook** — `useDiffPreferences` → `{ layout, wrapLines, hideWhitespace }`
+
+### Server
+
+- **`git_diff.ts`** — add `ignoreWhitespace` param, pass `-w` to `git diff`
+- **New route** — `POST /api/projects/:id/write_file` with pathGuard security
+
+### Infrastructure
+
+- No DB changes — comments client-side, file writes to disk
+- No new WS frames — uses existing `git_diff_refresh` event
+- No `@boocode/contracts` changes
+
+## Risk
+
+- **Side-by-side diff rendering** — biggest rendering risk; Paseo's `diff-layout.ts` is the reference
+- **Inline comments** — lost on localStorage clear; acceptable for v1
+- **File editing** — last-writer-wins for single-user is acceptable

openspec/changes/enhanced-file-panel/tasks.md

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+# Enhanced File Panel — tasks
+
+## Tasks
+
+- [ ] 1. **Server: whitespace param** — Add `ignoreWhitespace` param to `getGitDiff()` in
+  `apps/server/src/services/git_diff.ts`. Append `-w` to git diff argv when true.
+  Add `whitespace=1` query param to `GET /api/projects/:id/git/diff` route.
+
+- [ ] 2. **Server: write_file endpoint** — Add `POST /api/projects/:id/write_file` with
+  pathGuard validation and atomic file write. Wire client in `api/client.ts`.
+
+- [ ] 3. **Server tests** — Add tests for whitespace param and write_file endpoint.
+  (`apps/server/src/services/__tests__/git_diff.test.ts` + new write tests)
+
+- [ ] 4. **Frontend: useDiffPreferences hook** — Create `useDiffPreferences.ts` with
+  localStorage persistence for layout, wrapLines, hideWhitespace.
+
+- [ ] 5. **Frontend: GitDiffView toolbar** — Add toolbar row with Layout toggle,
+  Hide whitespace toggle, Wrap lines toggle, Expand/Collapse all, Refresh.
+
+- [ ] 6. **Frontend: diff layout utilities** — Create `utils/diff-layout.ts` with
+  `buildNumberedDiffHunks()`, `buildSplitDiffRows()`, `buildUnifiedDiffLines()`.
+
+- [ ] 7. **Frontend: DiffSplitView component** — Side-by-side renderer with two aligned
+  columns, Shiki highlighting per side, thin divider.
+
+- [ ] 8. **Frontend: Integrate split layout in GitDiffView** — Branch render path based
+  on `layout` preference. Wire collapse/expand state to all files.
+
+- [ ] 9. **Frontend: Inline comment store** — Create `stores/useDiffCommentStore.ts`
+  with Zustand + localStorage persistence. CRUD operations.
+
+- [ ] 10. **Frontend: InlineReviewGutterCell + InlineReviewEditor** — Gutter cells
+  with "+" on hover, editor textarea anchored below the target line.
+
+- [ ] 11. **Frontend: InlineReviewThread** — Comment thread display below diff lines.
+  Collapsible, shows body + timestamp + edit/delete.
+
+- [ ] 12. **Frontend: Integrate comments in GitDiffView** — Wire gutter cells,
+  editor, and thread into the diff line rendering.
+
+- [ ] 13. **Frontend: File editing in RightRail** — Double-click file → inline
+  textarea → Save/Cancel → write_file API → tree refresh.
+
+- [ ] 14. **Build + smoke test** — Verify `pnpm -C apps/web build` and
+  `pnpm -C apps/server build`. Run all QA scenarios.