- Add package_versions table with immutable version records
- Support version detection from explicit param, metadata, or filename
- Add version API endpoints (list, get, delete)
- Update ref resolution to check versions before tags
- Add version column to tags table in frontend UI
- Add Create Tag form for pointing tags at existing artifacts
- Update seed data with version records
- Add 16 integration tests for version functionality
- Grove → Project
- Tree → Package
- Fruit → Artifact
- Graft → Tag
- Cultivate → Upload
- Harvest → Download
Updated across:
- Backend models, schemas, and routes
- Frontend types, API client, and components
- README documentation
- API endpoints now use /project/:project/packages pattern
