- Add CustomCommandCreator and CustomCommand models to db_engine.py
- Add comprehensive custom commands API router with full CRUD operations
- Include migration script for transferring 140 commands from sba_is_fun.db
- Add FastAPI integration for /api/v3/custom_commands endpoints
- Implement usage tracking, search, autocomplete, and statistics features
- Add grace period handling for unused commands to prevent deletion
- Include comprehensive documentation for migration process
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Co-Authored-By: Claude <noreply@anthropic.com>