* feat: add bin/gstack-config CLI for reading/writing ~/.gstack/config.yaml
Simple get/set/list interface for persistent gstack configuration.
Used by update-check and upgrade skill for auto_upgrade and update_check settings.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat: smart update check with 12h cache, snooze backoff, config disable
- Reduce cache TTL from 24h to 12h for faster update detection
- Add exponential snooze backoff: 24h → 48h → 1 week (resets on new version)
- Add update_check: false config option to disable checks entirely
- Clear snooze file on just-upgraded
- 14 new tests covering snooze levels, expiry, corruption, and config paths
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* feat: upgrade skill with auto-upgrade, 4-option prompt, vendored sync
- Auto-upgrade mode via config or GSTACK_AUTO_UPGRADE=1 env var
- 4-option AskUserQuestion: upgrade once, always, not now, never
- Step 4.5: sync local vendored copy after upgrading primary install
- Snooze write with escalating backoff on "Not now"
- Update preamble text in gen-skill-docs for new upgrade flow
- Regenerate all SKILL.md files
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* docs: simplify upgrade instructions, move auto-upgrade to completed
README now points to /gstack-upgrade instead of long paste commands.
Auto-upgrade TODO moved to Completed section (v0.3.8).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* chore: bump version and changelog (v0.3.9)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Garry Tan