assistant-ui Runtime Always consult assistant-ui.com/llms.txt for latest API. References - ./references/local-runtime.md -- useLocalRuntime deep dive - ./references/external-store.md -- useExternalStoreRuntime deep dive - ./references/thread-list.md -- Thread list management - ./references/state-hooks.md -- State access hooks - ./references/types.md -- Type definitions Runtime Hierarchy State Access (Modern API) Thread Operations Message Operations Events Capabilities Quick Reference Common Gotchas "Cannot read property of undefined" - Ensure hooks are called inside State not updating - Use s…