- Should be merged after v0.2.9
- Create new end_user_api_controller.py with POST /end_user/create endpoint
- Implement API Key authentication requirement with memory scope
- Add support for optional memory_config_id parameter with workspace default fallback
- Update memory_api_schema.py to remove workspace_id from request (now derived from API key auth)
- Add memory_config_id field to CreateEndUserResponse schema
- Register end_user_api_controller router in service module
- Migrate end user creation from unauthenticated to authenticated API flow
