Merge origin/main into /spec branch — retag v1.45.0.0 → v1.47.0.0

main moved to v1.46.0.0 (gstack v2 foundation, eval-first floor across
51 skills) while this branch was at v1.45.0.0. v1.46 also reserved
v1.45.0.0 for the design daemon feature. Retag this branch's release
v1.45.0.0 → v1.47.0.0 so it lands cleanly on top of main.

Conflict resolutions:
- VERSION: 1.47.0.0 (MINOR continues on top of main's 1.46.0.0; this
  branch is also a MINOR per scale-aware rules — new skill capability).
- CHANGELOG: rewrite this branch's release header v1.45.0.0 → v1.47.0.0.
  Keep both main entries above main's older history.

Adapts to main's eval-first floor (v1.46.0.0 test/skill-coverage-matrix.ts
+ test/skill-coverage-floor.test.ts):
- Register /spec in SKILL_COVERAGE with 3 gate entries + 2 periodic.
- Skill catalog grows 51 → 52. Floor 6/6 structural checks pass.
- Catalog tokens: 4045 → 4116 (+71 for /spec, within v1.46's ≤7000 budget).
- Trim spec frontmatter description to single-paragraph block form to
  respect v1.46's catalog-trim intent (was 14 lines / ~900 chars,
  now 5 lines / ~350 chars; routing prose stays in body sections).
- 363/363 gate-tier tests pass across skill-coverage-floor (309) +
  skill-coverage-matrix (10) + skill-size-budget (3) + parity-suite (4) +
  spec-template-invariants (35) + spec-template-sync (2).

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

setup-browser-cookies/SKILL.md

@@ -2,11 +2,7 @@
 name: setup-browser-cookies
 preamble-tier: 1
 version: 1.0.0
-description: |
-  Import cookies from your real Chromium browser into the headless browse session.
-  Opens an interactive picker UI where you select which cookie domains to import.
-  Use before QA testing authenticated pages. Use when asked to "import cookies",
-  "login to the site", or "authenticate the browser". (gstack)
+description: Import cookies from your real Chromium browser into the headless browse session. (gstack)
 triggers:
   - import browser cookies
   - login to test site
@@ -19,6 +15,13 @@ allowed-tools:
 <!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly -->
 <!-- Regenerate: bun run gen:skill-docs -->
 
+
+## When to invoke this skill
+
+Opens an interactive picker UI where you select which cookie domains to import.
+Use before QA testing authenticated pages. Use when asked to "import cookies",
+"login to the site", or "authenticate the browser".
+
 ## Preamble (run first)
 
 ```bash