feat(work): auto-tick epic story bullets when a story finishes

- Add tickStoryBulletInEpic(workRoot, epic, story) helper that finds
  the bullet in the parent epic's `## Stories` section linking to the
  given story folder and flips `- [ ]` to `- [x]`. Idempotent.
- applyApprovedState now ticks the parent epic bullet whenever a
  story flips to status: done (alongside the existing per-task tick
  and epic-status flip). Epic file gets staged on either ticked-or-
  flipped, not just flipped.
- Backfill all 3 existing epics: 21 bullets ticked to match their
  already-done story statuses (binder-wrap-helper x3, library-
  evaluation-policy x9, ci-security-and-supply-chain x9).

docs/work/2026-05-13-binder-wrap-helper/_epic.md

@@ -18,6 +18,6 @@ Five of `pnpm fallow`'s top-ten clone groups come from binder pairs across featu
 
 ## Stories
 
-- [ ] [01 — Introduce `wireUseCase` helper in core-shared](01-wire-use-case-helper/_story.md)
-- [ ] [02 — Migrate all five feature binders to `wireUseCase`](02-migrate-feature-binders/_story.md)
-- [ ] [03 — Update generator templates to emit `wireUseCase` call shape](03-update-generator-templates/_story.md)
+- [x] [01 — Introduce `wireUseCase` helper in core-shared](01-wire-use-case-helper/_story.md)
+- [x] [02 — Migrate all five feature binders to `wireUseCase`](02-migrate-feature-binders/_story.md)
+- [x] [03 — Update generator templates to emit `wireUseCase` call shape](03-update-generator-templates/_story.md)

docs/work/2026-05-14-ci-security-and-supply-chain/_epic.md

@@ -18,12 +18,12 @@ The repo's security posture has zero security tooling. ADR-022 + the library-eva
 
 ## Stories
 
-- [ ] [01 — Trace schema extensions (socketRisk + lastRevalidated)](01-trace-schema-extensions/_story.md)
-- [ ] [02 — Socket integration (skill + CI)](02-socket-integration/_story.md)
-- [ ] [03 — Renovate adoption](03-renovate-adoption/_story.md)
-- [ ] [04 — Major-bump re-evaluation flow](04-major-bump-reevaluation/_story.md)
-- [ ] [05 — Trace revalidation workflow](05-trace-revalidation-workflow/_story.md)
-- [ ] [06 — CodeQL workflow + pnpm audit signatures](06-codeql-and-audit-signatures/_story.md)
-- [ ] [07 — Gitleaks pre-commit hook](07-gitleaks-precommit/_story.md)
-- [ ] [08 — Sandcastle reviewer prompt update](08-reviewer-prompt-update/_story.md)
-- [ ] [09 — CI security guide + CLAUDE.md](09-ci-security-guide-and-docs/_story.md)
+- [x] [01 — Trace schema extensions (socketRisk + lastRevalidated)](01-trace-schema-extensions/_story.md)
+- [x] [02 — Socket integration (skill + CI)](02-socket-integration/_story.md)
+- [x] [03 — Renovate adoption](03-renovate-adoption/_story.md)
+- [x] [04 — Major-bump re-evaluation flow](04-major-bump-reevaluation/_story.md)
+- [x] [05 — Trace revalidation workflow](05-trace-revalidation-workflow/_story.md)
+- [x] [06 — CodeQL workflow + pnpm audit signatures](06-codeql-and-audit-signatures/_story.md)
+- [x] [07 — Gitleaks pre-commit hook](07-gitleaks-precommit/_story.md)
+- [x] [08 — Sandcastle reviewer prompt update](08-reviewer-prompt-update/_story.md)
+- [x] [09 — CI security guide + CLAUDE.md](09-ci-security-guide-and-docs/_story.md)

docs/work/2026-05-14-library-evaluation-policy/_epic.md

@@ -18,12 +18,12 @@ The repo's narrow third-party surface is uncodified. New dependencies enter via
 
 ## Stories
 
-- [ ] [01 — Trace schema module + docs/library-decisions/ foundation](01-trace-schema-foundation/_story.md)
-- [ ] [02 — Pre-commit check script](02-pre-commit-check-script/_story.md)
-- [ ] [03 — Claude PreToolUse / PostToolUse hooks](03-claude-hooks/_story.md)
-- [ ] [04 — evaluate-library skill](04-evaluate-library-skill/_story.md)
-- [ ] [05 — Human guide: docs/guides/adding-a-library.md](05-human-guide/_story.md)
-- [ ] [06 — Sandcastle reviewer prompt update](06-sandcastle-reviewer-prompt/_story.md)
-- [ ] [07 — Generator pre-shipped traces for optional cores](07-generator-pre-shipped-traces/_story.md)
-- [ ] [08 — Backfill traces for existing runtime deps](08-backfill-traces/_story.md)
-- [ ] [09 — CLAUDE.md Key Conventions bullet](09-claude-md-update/_story.md)
+- [x] [01 — Trace schema module + docs/library-decisions/ foundation](01-trace-schema-foundation/_story.md)
+- [x] [02 — Pre-commit check script](02-pre-commit-check-script/_story.md)
+- [x] [03 — Claude PreToolUse / PostToolUse hooks](03-claude-hooks/_story.md)
+- [x] [04 — evaluate-library skill](04-evaluate-library-skill/_story.md)
+- [x] [05 — Human guide: docs/guides/adding-a-library.md](05-human-guide/_story.md)
+- [x] [06 — Sandcastle reviewer prompt update](06-sandcastle-reviewer-prompt/_story.md)
+- [x] [07 — Generator pre-shipped traces for optional cores](07-generator-pre-shipped-traces/_story.md)
+- [x] [08 — Backfill traces for existing runtime deps](08-backfill-traces/_story.md)
+- [x] [09 — CLAUDE.md Key Conventions bullet](09-claude-md-update/_story.md)

docs/work/_state.json

@@ -1,5 +1,5 @@
 {
-  "updated_at": "2026-05-14T18:17:30.697Z",
+  "updated_at": "2026-05-14T19:05:08.479Z",
   "epics": {
     "2026-05-13-binder-wrap-helper": {
       "status": "done",