phase: 156_table_ux_polish

Everything is verified. All gates green on the current working tree. Final report:

**Phase 156 — final verification pass (all 4 task files present in `complete/` — no outstanding work)**

- **Verified (not re-implemented):** bounded-panel `.table-wrap` (`max-height: min(70vh, 64rem)`, `overflow: auto`, opaque sticky `th` via `var(--brand-soft)`), `.cell-clip` ellipsis rule + the five label families in the three renderers, the added aria-labels, unit pins (incl. `.md-table-wrap` byte-unchanged scope guard, `#git-sources-table-wrap` harmony — no divergent rule), dedicated E2E suite (sticky ×3 tables, horizontal contract, computed-style ellipsis + reachable full text, mobile hamburger + scroll + pin)
- **Tests/lint/coverage:** `uv run pytest --cov=app --cov-report=term-missing` → **3570 passed, 99% on `app/`** (gate >90%); `uv run pytest tests/e2e/test_table_ux_polish.py -v --no-cov` (DB up) → **6/6 passed in isolation**; `uv run ruff check . && uv run pyright` → **clean** (0 errors)
- **Completion criteria:** sticky header all 3 tables (exact-0 offset while `scrollTop > 0`) ✅ · horizontal scroll unchanged ✅ · ellipsis computed style + actual clip + title/aria reachable ✅ · mobile ≤640px contract ✅ · full suite/E2E/lint/coverage ✅ · atomic commit: **harness commits this phase after the pass** (per pipeline protocol — no git history commands run by me)
- **Documentation:** AGENTS.md phase-156 wording (bounded panels, sticky headers, `.cell-clip` + aria-label idiom) matches the implementation exactly — verified consistent; README.md reviewed in full (pages/URLs vs registered routes, all `.env.example` vars documented, Quick Start, eval/llm scripts, compose prod profile, E2E examples) — verified consistent, no changes needed (README describes no table layout/scroll, so no phase-156 mention required)
- **Deviations:** none — all work was already in the working tree; this pass re-verified every gate and the docs
- **Next pending phase:** `157_chat_chip_cap`

tests/unit/test_source_ignore_paths.py

@@ -242,9 +242,16 @@ def test_row_button_exists_only_in_the_stored_row_branch() -> None:
     assert f'ignoreBtn.className = "{ROW_BTN_CLASS}"' in make
     assert "ignoreBtn.type = \"button\"" in make
     assert ARIA_LABEL_TEMPLATE in make, "the aria-label template (the only value site)"
-    assert "ignoreBtn.textContent = \"Ignore paths\"" in make, (
+    # Phase 156 (task 02, A3): the static text label is the .cell-clip
+    # span — a squeezed cell shows "…" instead of a hard cut (the
+    # aria-label above keeps the full context reachable).
+    assert "ignoreClip.className = \"cell-clip\"" in make, (
+        "the clip label span (phase 156, A3)"
+    )
+    assert "ignoreClip.textContent = \"Ignore paths\"" in make, (
         "a static text label — never icon-only"
     )
+    assert "ignoreBtn.append(ignoreClip)" in make, "the span is the button's label"
     assert "ignoreBtn.innerHTML" not in _js(), "XSS contract: no innerHTML on the button"
     # The env-fallback branch (else) has no ignore button.
     else_slice = make[else_i : make.find("tr.appendChild(actTd)", else_i)]