* feat(runtime): proactive CLI update notifications with per-user filtering
- Add latestCliVersionOptions query (GitHub Releases API, 10-min TanStack cache)
- Add useMyRuntimesNeedUpdate / useUpdatableRuntimeIds hooks using owner_id
- Show red dot on sidebar Runtimes item when user's runtimes need updates
- Show update arrow icon alongside status dot in runtime list items
* fix(core): add runtimes/hooks to package.json exports