- Add new `apply_better_fbx_orientations` operator as standalone UI action for applying bone orientations
- Add "Delete Accessory Bones" property and UI toggle in EXTRAS panel for optional bone cleanup
- Move bone orientation logic from `modify_armature` execute method to new dedicated operator
- Refactor accessory bone deletion into separate method callable from new operator
- Update panel UI to show better FBX bones operator with delete accessory bones toggle option
- Register new operator in `__init__.py` and export from modifyarmature module
- Update interface dictionaries (English, Japanese, Chinese) with new UI strings
- Enable better FBX orientations and accessory deletion only for Koikatsu armature (C) selection
- Add detailed logging for bone operation counts and status tracking
- Add core addon files (__init__.py, KKPanel.py, preferences.py, common.py)
- Add import pipeline with armature, mesh, and material modification modules
- Add export pipeline with material baking and FBX preparation utilities
- Add material combiner tool for texture atlas generation and optimization
- Add extras utilities for animation, rigging, and asset management
- Add bone orientation data from better_fbx for accurate skeletal structure
- Add comprehensive documentation and wiki with multi-language support (EN, JP, ZH)
- Add animation library retargeting lists for ARP and Rokoko motion capture
- Add Rigify integration scripts for advanced rigging workflows
- Add shader file (KK Shader V8.0.blend) for material rendering
- Add manifest and license files for addon distribution
- Add changelog documenting version history and improvements
- Initialize complete Blender addon project for Koikatsu character import/export
