- Delete ChatProvider, ChannelPreview, CustomChannelHeader, hooks/channel.ts
- Replace TabloDiscussionSection with chatscope-based implementation using useChat
- Update tablo-details.tsx to use useChatUnread instead of useTabloDiscussionUnread
- Remove streamToken field from User type in UserStoreProvider
- Remove useSignUpToStream from shared auth hooks
- Remove stream-chat and stream-chat-react packages
- Remove stream-chat-react CSS import from main.tsx
- Clean up all streamToken references from test mocks and helpers
- Update chat.test.tsx and tablo-details.layout.test.tsx for new implementation
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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