- Remove deprecated calendar UI tests
- Update profile model with phone field support
- Update agent schemas with runtime_models and forwarded_props
- Update system_agent with new agent configuration
- Add migration to delete user_agents table and memories.agent_id
- Rename user_agent_catalog to system_agents
- Remove UserAgents model
- Rename UserAgentCatalog to SystemAgents model
- Add UserAgentCatalogSeed and UserAgentCatalogYaml Pydantic models
- Add load_user_agent_catalog function to load from YAML
- Add _upsert_user_agent_catalog helper for upsert logic
- Add initialize_user_agent_catalog function for initialization
- Refactor initialize_data to call initialize_llm_catalog and initialize_user_agent_catalog
- Fix UserAgentCatalog.llm_id type from str to uuid.UUID
replace monolithic migration with ordered scripts, include profiles/sessions in migration, and verify full downgrade/upgrade cycle for clean Supabase bootstrap