phase: 159_edit_and_resend_message

All completion criteria verified. Final report:

**Phase 159 — Edit the last question and re-ask it: VERIFIED COMPLETE** (all 4 tasks already in `complete/`; this pass verified end-to-end)

**Verified (implementation landed + tests green):**
- `app.js`: `EDIT_ICON`, `lastUserWrap`, `appendEditButton`/`markLastEditable` (single-target discipline, in-flight guard), `openEditor` (labelled textarea, `maxlength=4000`, Escape/Ctrl+⌘+Enter, empty guard), save path: replace → splice tail → DOM removal → `lastBrainWrap=null` → `saveConversation`+`persistConversation` → `runTurn(text,{reask:true})` — matches README exactly
- `styles.css`: `.edit-btn`/`.edit-form`/`.edit-error`/`.is-editing` + mobile 44px; unit pins 40, E2E 7, integration `test_chats_api.py` extended

**Test/lint results (all green):**
- `uv run pytest` — 3,661 tests, exit 0
- `uv run pytest --cov=app --cov-report=term-missing` — TOTAL **99%** (>90%)
- `uv run ruff check . && uv run pyright` — all checks passed; 0 errors
- `uv run pytest tests/e2e/test_edit_and_resend.py -v --no-cov` (DB up) — **7/7 passed**
- Regressions in isolation: `test_retry_answer.py` 4/4, `test_failed_turn_retry.py` 4/4, `test_chat_persistence.py` 4/4

**Completion criteria:** all 7 ✓ — Edit on last bubble + prefill + Escape/Cancel restore (E2E #3); replace+truncate+re-ask with no duplicated question (E2E #1); refresh survival (E2E #4); failed/“question too long” turn editable + trim re-asks (E2E #5); earlier bubbles un-editable + byte-identical Retry/Stop/persistence (E2E #2 + regressions + unit pins); suite/coverage/lint ✓; E2E + regressions isolated ✓. Commit + phase-dir move: harness's job (no git ops by me, per protocol).

**Documentation:** README.md — full review; phase 159 section cross-checked against `app.js` source (cap, keys, truncate, image survival) — consistent, no changes needed; all 30 `.env.example` vars documented. AGENTS.md — full review; all rules/quick-ref commands valid — verified consistent, no changes needed.

**Notable:** none — no defects found in prior work; no live-infrastructure changes required.

**Next pending phase:** `160_tool_budget_telemetry`

pyproject.toml

@@ -50,6 +50,14 @@ target-version = "py312"
 [tool.ruff.lint]
 select = ["E", "F", "W", "I", "UP", "B", "SIM"]
 
+# The phase-159 task-01 test embeds the FULL byte-pin of app.js's
+# ``runTurn`` (32KB, 584 lines — the house byte-pin convention for the
+# phase's "NOT touched" contract). The pin must stay byte-identical to
+# the JS source, so its long JS comment lines cannot be wrapped — E501
+# is ignored for that file only (the test code itself is wrapped).
+[tool.ruff.lint.per-file-ignores]
+"tests/unit/test_frontend_edit_message.py" = ["E501"]
+
 [tool.pyright]
 pythonVersion = "3.12"
 typeCheckingMode = "standard"