- Remove all props from Chat (showHeader, headerActions) making it a
zero-config pure chat component with only connection input, messages,
and send functionality
- Create AppHeader client component for web app with brand, theme
toggle, disconnect button, and useHubInit
- Add disconnect button to desktop layout header
- Add reset() action to hub store to eliminate duplicated state reset
- Remove unused token field from gateway store
- Remove dead code: connection-bar.tsx
- Guard handleConnect against empty deviceId race condition
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>