COMMIT_MSG

feat(baton): graduate work_verb to framework + harden coherence engine (#332/#319/#315/#314)

Baton post-calibration: the Sentinel E1/E2/E3 calibration (#331) proved
title-scan unviable and ratified `work_verb`/`design_provenance` as the
sole classification signal (#332, schema ratification in
experiment-baton/06-work-verb-schema-ratification.md). This commit
graduates those fields to the framework (Track A) and applies three
hardening fixes to the experiment (Track B).

== Track A: work_verb graduation ==

Templates:
- AILOG template (EN/ES/zh-CN): added optional `work_verb` and
  `design_provenance` frontmatter comments, matching the Charter
  template which already had them.
- Follow-ups backlog template: added `**Work verb**:` and
  `**Design provenance**:` to the entry shape comment.

Validation:
- `straymark validate` now checks follow-ups backlog `**Work verb**:`
  and `**Design provenance**:` lines against the controlled vocabulary
  (design/implement/audit/operate, new/upstream). Advisory only —
  same anti-noise posture as the existing charter check: absent fields
  emit nothing, present-but-invalid values emit a Warning.

Documentation:
- QUICK-REFERENCE.md: added "Work Classification (Baton #332)" section
  with the verbo→tier table and determination rules.
- CHANGELOG.md: unreleased entry covering all changes.

== Track B: Baton hardening ==

#319 — Producer-side route keying (huma Go):
- codescan.rs gains `collect_go_bindings()` which parses
  `huma.Get(api, "/path", h.handlerMethod)` registrations to bind
  handler→route, then keys `<handler>Output` structs to the correct
  route via the huma naming convention. Previously, nearest-anchor
  bound structs to whatever route was registered last before the
  struct definition (~75 lines below in Sentinel), causing C2/C3 to
  miss producer shapes entirely on un-remediated repos.

#315 — EPIPE/SIGPIPE handling:
- main.rs resets SIGPIPE to SIG_DFL on Unix so piping to `head`/`less`
  exits cleanly instead of crashing with EPIPE.

#314 — Component→path mapping for C1:
- Memory files (`.specify/memory/Arquitectura - <X>.md`) can now
  declare explicit `paths:` globs in frontmatter. When present, C1
  uses glob matching instead of the slug heuristic, and the finding
  is promoted from Info/Low to Warning/High confidence — no more
  false positives from concept-name collisions.
- Includes a proper recursive glob matcher (`**` = zero or more
  whole segments, `*` = within-segment wildcard).

== Deferred ==

- #321 (language-agnostic codescan): blocked on N=2 (second adopter
  with non-Go⇄TS stack). The `LanguageAdapter` seam is documented
  but not built.
- #335 (declared-signal principle for codescan): design note, no new
  functionality needed.
- A5 (framework version bump): deferred to release time.

== Verification ==

- `cargo test -p straymark-baton` — 51 passed, 0 failed
- `cargo check -p straymark-cli` — clean
- `cargo test -p straymark-cli -- validate` — green