refactor(phase2.3): Migrate to Pydantic V2 and modernize config management
Complete Pydantic V2 migration and config modernization:
api/models.py:
- Migrated @validator → @field_validator (Pydantic V2)
- Added @classmethod decorators (required in V2)
- Updated validator signatures: (cls, v, values) → (cls, v, info)
- Consolidated unique validators into one method
- Fixed: 3 PydanticDeprecatedSince20 warnings ✅
config/schema.py:
- Migrated from @dataclass → Pydantic BaseModel
- Added Field() with validation constraints:
* Port: ge=1, le=65535
* Floats: gt=0, ge=0
* Strings: min_length constraints
- Added descriptive field descriptions
- Better type safety and runtime validation
core/bootstrap.py:
- Replaced SimpleNamespace → MQTTConfig (Pydantic)
- Now returns properly typed Pydantic models
- Better IDE autocomplete and type checking
Benefits:
✅ No more Pydantic V1 deprecation warnings
✅ Runtime validation for all config fields
✅ Better error messages on invalid config
✅ Type-safe config throughout the application
✅ Automatic validation (port ranges, positive numbers, etc.)
✅ Prepared for Pydantic V3 migration
Migration verified:
- Config loading works: load_config('config.example.yaml') ✓
- Bootstrap works with Pydantic models ✓
- Field validation works (tested port ranges, thresholds) ✓
- All existing functionality preserved ✓
Test: python3 -c 'from core.bootstrap import bootstrap; bootstrap()'
✅ Works perfectly with new Pydantic V2 models
See OPTIMIZATION_PLAN.md Phase 2.3 for details.
matthias.lotz
527b5645ed