Phase 1 Database Implementation (DB-001 through DB-012):
Models:
- User: OAuth support (Google/Discord), premium subscriptions
- Collection: Card ownership with CardSource enum
- Deck: JSONB cards/energy_cards, validation state
- CampaignProgress: One-to-one with User, medals/NPCs as JSONB
- ActiveGame: In-progress games with GameType enum
- GameHistory: Completed games with EndReason enum, replay data
Infrastructure:
- Alembic migrations with sync psycopg2 (avoids async issues)
- Docker Compose for Postgres (5433) and Redis (6380)
- App config with Pydantic settings
- Redis client helper
Test Infrastructure:
- 68 database tests (47 model + 21 relationship)
- Async factory pattern for test data creation
- Sync TRUNCATE cleanup (solves pytest-asyncio event loop mismatch)
- Uses dev containers instead of testcontainers for reliability
Key technical decisions:
- passive_deletes=True for ON DELETE SET NULL relationships
- NullPool for test sessions (no connection reuse)
- expire_on_commit=False with manual expire() for relationship tests
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