- Add AgentSkillEntry type with skillId, source, installedAt fields
- install() now sends agentId in body not agentSkillsDir
- uninstall() new function that sends agentId as query param
- rollback() now sends agentId in body not agentSkillsDir
- skillGroups.assignGroup/removeGroup no longer accept agentSkillsDir param
- listAgentSkills now returns AgentSkillEntry[] not string[]
- Fix AgentDetail.tsx callers and entry rendering for new AgentSkillEntry type
- Fix SkillDetail.tsx callers to use agentId param
- Create StarRating component with interactive/readonly modes, amber stars, size sm/md
- Add PersonalRating type and taskCount/avgCostUsd/lastUsedAt to SkillListItem
- Add getRatings and addRating to skillRegistryApi
- Add Rating System section to DesignGuide with all variants
- Fix SkillCard fixture and DesignGuide examples to include new SkillListItem fields
- Create ui/src/api/skillRegistry.ts with typed methods for all 7 endpoints
- Use two-segment URL paths (/sourceId/slug) for Express 5 compatibility
- Add skillRegistry namespace to queryKeys.ts (list/detail/versions)
