DLM Refactoring - Phase 1 Complete

Phase 1 of the DLM refactoring has been completed successfully. The critical Pydantic v2 compatibility issues have been resolved for all Week 2-3 modules, and a comprehensive audit has identified the remaining work. ### 1. Comprehensive Package Audit - **File Analysis**: Analyzed all 154 Python files (63,339 lines) - **Directory Structure**: Mapped 22 directories - **Size Analysis**: Identified 10 files exceeding 1000 lines - **Dependency Mapping**: Documented consolidation opportunities - **Output**: [DLM_REFACTORING_AUDIT.md](DLM_REFACTORING_AUDIT.md) ### 2. Pydantic v2 Migration (Week 2-3 Modules) Successfully migrated core modules to Pydantic v2.11.5: #### Validator Updates - ✅ **models/generation.py**: 1 @root_validator → @model_validator - ✅ **core/coordinates.py**: 2 @validator → @field_validator - ✅ **base.py**: 1 @validator → @field_validator, 3 ClassVar annotations - ✅ **inference/artificial.py**: 3 @root_validator → @model_validator #### Field Annotation Fixes - ✅ Fixed unannotated field overrides - ✅ Added ClassVar annotations for class constants - ✅ Updated import statements