Add CardRarityTier enum for pull rate calculations (common through
crown_rare). Add CardSubtype enum for Pokemon classifications (basic,
stage1, stage2, ex, etc.). Update CardDefinition model with new fields
for subtypes and rarity display.
Architectural refactor to eliminate circular imports and establish clean
module boundaries:
- Move enums from app/core/models/enums.py to app/core/enums.py
(foundational module with zero dependencies)
- Update all imports across 30 files to use new enum location
- Set up clean export structure:
- app.core.enums: canonical source for all enums
- app.core: convenience exports for full public API
- app.core.models: exports models only (not enums)
- Add module exports to app/core/__init__.py and app/core/effects/__init__.py
- Remove circular import workarounds from game_state.py
This enables app.core.models to export GameState without circular import
issues, since enums no longer depend on the models package.
All 826 tests passing.
