Merge remote-tracking branch 'origin/main' into garrytan/askuser-one-at-a-time

Resolved conflicts:
- VERSION: take main's 0.11.17.0 (newer)
- CHANGELOG.md: keep main's 0.11.17.0 entry, drop our stale 0.11.16.2 entry
- SKILL.md, benchmark/SKILL.md, browse/SKILL.md, setup-browser-cookies/SKILL.md:
  regenerated from templates via bun run gen:skill-docs

SKILL.md

@@ -3,19 +3,10 @@ name: gstack
 preamble-tier: 1
 version: 1.1.0
 description: |
-  MANUAL TRIGGER ONLY: invoke only when user types /gstack.
   Fast headless browser for QA testing and site dogfooding. Navigate pages, interact with
   elements, verify state, diff before/after, take annotated screenshots, test responsive
   layouts, forms, uploads, dialogs, and capture bug evidence. Use when asked to open or
   test a site, verify a deployment, dogfood a user flow, or file a bug with screenshots.
-  Also suggest adjacent gstack skills by stage: brainstorm /office-hours; strategy
-  /plan-ceo-review; architecture /plan-eng-review; design /plan-design-review or
-  /design-consultation; auto-review /autoplan; debugging /investigate; QA /qa; code review
-  /review; visual audit /design-review; shipping /ship; docs /document-release; retro
-  /retro; second opinion /codex; prod safety /careful or /guard; scoped edits /freeze or
-  /unfreeze; gstack upgrades /gstack-upgrade. If the user opts out of suggestions, stop
-  and run gstack-config set proactive false; if they opt back in, run gstack-config set
-  proactive true.
 allowed-tools:
   - Bash
   - Read