- Add SQLCipher encryption for ait-mainnet database with configurable flag
- Add db_encryption_enabled and db_encryption_key_path config settings
- Implement encryption key loading and PRAGMA key setup via connection events
- Add shutdown_db function for proper database cleanup
- Export middleware classes in aitbc/__init__.py
- Fix import path in sync.py for settings
- Remove duplicate agent documentation from docs
- Replace SessionDep type alias with explicit Annotated[Session, Depends(get_session)]
- Add missing imports for Session, Annotated, and Depends types
- Update all endpoint function signatures to use explicit dependency annotation
- Remove redundant `= Depends()` default values from session parameters
- Update docstrings and comments to reference new annotation pattern
- Apply changes consistently across all router
- Change file mode from 644 to 755 for all project files
- Add chain_id parameter to get_balance RPC endpoint with default "ait-devnet"
- Rename Miner.extra_meta_data to extra_metadata for consistency
