Project plan updates:
- Mark all 14 Phase 3 tasks as completed
- Update acceptance criteria to met
- Update master plan status to Phase 4 next
- Add detailed deliverables list for Phase 3
Documentation updates:
- Add UNSET sentinel pattern to CLAUDE.md
- Document when to use UNSET vs None for nullable fields
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implemented with Repository Protocol pattern for offline fork support:
- CollectionService with PostgresCollectionRepository
- DeckService with PostgresDeckRepository
- DeckValidator with DeckConfig + CardService injection
- Starter deck definitions (5 types: grass, fire, water, psychic, lightning)
- Pydantic schemas for collection and deck APIs
- Unit tests for DeckValidator (32 tests passing)
Architecture follows pure dependency injection - no service locator patterns.
Added CLAUDE.md documenting DI requirements and patterns.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>