- Create docs/contracts/PNPM_SETUP.md with pnpm configuration guide
- Update docs/contracts/README.md to link to PNPM_SETUP.md
- Document .npmrc settings, common commands, and troubleshooting
- 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