task(review): independent review done, findings filed

closes board-viewer-review

Subagent code-review against design spec + acceptance criteria found:
- 2 Major: README emoji legend stale (board-viewer-readme-emoji-fix),
  card meta missing owner pill + last-commit-marker (board-viewer-card-meta-fix)
- 6 minor/nitpick bundled as board-viewer-polish

All shipped code: 43/43 tests pass, TDD-immutability clean, secret hygiene OK.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.tasks/board-viewer-polish.md

@@ -0,0 +1,60 @@
+# board-viewer-polish
+
+## Goal
+
+Bundle of minor / nitpick findings from `board-viewer-review` checkpoint. Each — small, individually below the task-creation threshold; collectively worth doing in one sweep.
+
+## Items
+
+### M1. Document parser's `**Status:**` field neglect
+
+- **Location:** `src/parser.ts` (in `parseOneBlock`)
+- **Problem:** `**Status:**` text field is matched by `FIELD_RE` but never stored in `StatusBlock` (emoji is SoT). Future maintainer reads parser and wonders why.
+- **Fix:** comment `// **Status:** text field intentionally ignored — emoji is canonical` near where it's matched, OR `delete fields['Status']` after parse to avoid the orphan field in local var. Choose the comment.
+
+### M2. `formatAge` future-timestamp behavior is undocumented
+
+- **Location:** `src/render.ts:31` + `static/board.js:49`
+- **Problem:** `Math.max(0, …)` silently clamps future ISO to "0m". With server-clock drift на VDS vs Gitea это маскирует ошибку синхронизации.
+- **Fix:** add one test asserting `formatAge(futureIso, now) === '0m'` to lock behavior, and add inline comment "// clamps to '0m' on future iso — see test".
+
+### M3. `gitea-reader` acceptance "per-task без записи в STATUS.md (legacy)" is impossible by design
+
+- **Location:** `.tasks/board-viewer-gitea-reader.md` Decisions log
+- **Problem:** Acceptance line 42 promises tests for "per-task без записи в STATUS.md (legacy)" case, but the reader iterates STATUS.md blocks only — orphan per-task files are invisible by design (matches spec: STATUS.md is the index).
+- **Fix:** append a decisions-log entry to `board-viewer-gitea-reader.md` clarifying this is intentional; STATUS.md is the entry point, orphan per-task files are out of scope.
+
+### M4. Client filter doesn't match status in by-status mode; "multi-select по статусам" not implemented
+
+- **Location:** `static/board.js:139-147` (`applyFilter`)
+- **Problem:** Filter reads `.badge.status` / `.badge.project` text from DOM. In by-status mode there's no status badge → typing "blocked" matches nothing. Также acceptance в `board-viewer-html-render.md:27` обещает multi-select по статусам — не реализован.
+- **Fix:** rebuild `applyFilter` to query the underlying `records` array (status always available regardless of view mode). Decide on multi-select: either ship a status-pill filter row, or amend acceptance criteria. Recommendation: add multi-select pills below the filter input — simple `<button data-status="…" class="status-filter">` toggle.
+
+### M5. Build container failures show only `echo` output, no Docker healthcheck
+
+- **Location:** `deploy/Dockerfile.build:14`
+- **Problem:** `... || echo 'render failed; will retry next tick'` swallows non-zero exit. Operator must `docker compose logs build` to notice. No Docker healthcheck signals unhealthy.
+- **Fix:** emit failure to stderr (`>&2 echo`), and add a `HEALTHCHECK` to Dockerfile that checks `[ -f /output/index.html ]` AND `[ $(date +%s) - $(stat -c %Y /output/index.html) -lt 600 ]` (file exists AND fresher than 10 min). Compose `web` service can `depends_on` health.
+
+### M6. `getLatestCommitIso` called serially, N=80+ per tick
+
+- **Location:** `src/reader.ts:36-37`
+- **Problem:** `for...of await` serializes 80+ HTTP calls. Within budget for now but a Gitea hiccup serializes through all of them.
+- **Fix:** parallelize per-repo or globally with `Promise.all(blocks.map(...))`. Cap concurrency at ~10 if politeness is a concern.
+
+## Decisions log
+
+- 2026-05-22: bundle создан промоушеном из review-чекпойнта; severity варьируется minor → nitpick; bundled, чтобы не плодить 6 микро-тасок.
+
+## Completed steps
+
+- [ ] M1: parser comment
+- [ ] M2: formatAge future-ts test + comment
+- [ ] M3: decisions-log entry in gitea-reader.md
+- [ ] M4: filter rebuild + status multi-select OR acceptance amendment
+- [ ] M5: stderr + Docker HEALTHCHECK
+- [ ] M6: parallelize commit-iso fetches
+
+## Notes
+
+Каждый item — TDD по тому, что есть testable. M1/M3 — comment/docs only ([skip-tdd: visual]). M2 — pure test. M4/M5/M6 — TDD logic.