chore: remove old handoff docs, plans, review reports, and task lists from rootHEADmain

Removed 40+ markdown files that were cluttering the repo root:
- frontend-*-handoff.md (28 files) — historical API contract handoffs, features all implemented
- backend-to-fe-handoff.md, backend-to-fe-handoff-2.md — old handoff docs
- broken-chat-repair-handoff.md — old repair handoff
- PLAN-mcp.md, PLAN-per-edit-diagnostics.md — old planning docs
- ai-review-report.md, crash-review-report.md — one-time review reports
- tasks.md, HANDOFF.md — outdated status docs (git log is the source of truth)

Kept: AGENTS.md, GLOSSARY.md, ORCHESTRATOR.md, README.md
Also: gitignored ai-review-report.md so future Gemini reviews don't commit it

1 files changed, 0 insertions, 44 deletions

diff --git a/PLAN-per-edit-diagnostics.md b/PLAN-per-edit-diagnostics.md
deleted file mode 100644
index 20671c2..0000000
--- a/PLAN-per-edit-diagnostics.md
+++ /dev/null
@@ -1,44 +0,0 @@
-# Plan — Live Per-Edit Diagnostics (General LSP)
-
-> **Status:** APPROVED — implementing.
-
-## Decisions (confirmed with user)
-
-1. **Multi-server aggregation** — query ALL connected servers matching the file's extension, merge diagnostics tagged by source.
-2. **Incremental sync** — capture each server's `textDocumentSync.change` during `initialize`; compute prefix/suffix diff ranges for `change: 2`; full content for `change: 1`. Generic, works for ALL LSPs.
-3. **`languageId` mapping** — extend the existing `language.ts` with `.rb`/`.rbs`, `.c`/`.cpp`, etc.
-4. **Auto-append to `edit_file`** — after a successful edit, run diagnostics on the post-edit buffer. Only append diagnostics if there are errors/warnings (severity ≤ 2). Don't append on clean edits (no noise).
-5. **60s timeout** — if diagnostics take >10s, prepend a warning: "LSP is taking unusually long. If this happens more than once, raise it to the user." Always append this if slow, regardless of whether there are errors.
-6. **General** — not Steep-specific. Works for any LSP server.
-
-## Implementation waves
-
-### Wave 1: `packages/lsp/` (single unit)
-
-| File | Change |
-|---|---|
-| `src/diff.ts` (NEW) | Pure diff: `computeChangeRange(oldText, newText)` + `offsetToPosition(text, offset)` |
-| `src/language.ts` | Add `.rb`/`.rbs` → `"ruby"`, `.c`/`.h` → `"c"`, `.cpp`/`.cc`/`.hpp` → `"cpp"` |
-| `src/diagnostics.ts` | Add `hasReceivedPush(uri)` tracking, `clearReceived(uri)`, `formatFiltered(uri, minSeverity?)` |
-| `src/client.ts` | Capture `textDocumentSync.change` from init; track open doc text; add `change(filePath, newText)` with incremental/full sync; fix `languageId` in `open()`; extend `waitForDiagnostics(filePath, opts?)` to accept `text` + `timeoutMs` + return `{ formatted, slow, timedOut }` |
-| `src/tool.ts` | `diagnostics` op: query ALL matching connected servers (not just first); merge tagged by source |
-| `src/types.ts` | Add `getDiagnostics(opts)` to `LspService` + `DiagnosticsResult` type |
-| `src/extension.ts` | Implement `getDiagnostics` (calls manager → all matching clients → merge) |
-| `src/diff.test.ts` (NEW) | Unit tests for diff functions |
-| `src/tool.test.ts` | Multi-server aggregation test |
-| `src/client.test.ts` | `change()`, `languageId`, `waitForDiagnostics` with text tests |
-
-### Wave 2: `packages/tool-edit-file/` (cross-extension)
-
-| File | Change |
-|---|---|
-| `src/extension.ts` | Import `lspServiceHandle` from `@dispatch/lsp`; `host.getService()` in activate; pass to tool |
-| `src/edit-file.ts` | After successful edit: call `getDiagnostics({ filePath, text: newContent, cwd, minSeverity: 2, timeoutMs: 60_000 })`; append if errors; append slow warning if >10s |
-| `package.json` | Add `@dispatch/lsp` dep |
-| `tsconfig.json` | Add `@dispatch/lsp` reference |
-
-### Wave 3: Build wiring (orchestrator)
-
-- Root `tsconfig.json`: add `@dispatch/tool-edit-file` → `@dispatch/lsp` ref if needed
-- `bun install` to link
-- Verify: typecheck + test + biome