fix: thread update after chat

[samhvw8]

Describe Your Changes

Overview

This PR introduces automatic thread ordering based on activity, ensuring the most recently active threads appear at the top of the thread list.

What's Changed

New Features

• Thread Timestamp Updates: Automatically update thread timestamps when new messages are added

Implementation Details

useThreads.ts

• Added updateThreadTimestamp(threadId: string) function to the ThreadState interface
• Implemented smart ordering logic:
  • If thread is already at order 1: only update timestamp
  • If thread is not at top: move to order 1 and increment all other threads' order by 1
• Ensures both local state and backend storage are updated
• Maintains search index consistency after reordering

useChat.ts

• Integrated updateThreadTimestamp calls at key interaction points:
  • When user sends a message
  • When assistant responds with a message
• Ensures threads stay current based on conversation activity

Files Modified

• web-app/src/hooks/useChat.ts - Added timestamp update calls
• web-app/src/hooks/useThreads.ts - Implemented core ordering logic

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

[ellipsis-dev]

⚠️ This PR is too big for Ellipsis, but support for larger PRs is coming soon. If you want us to prioritize this feature, let us know at [email protected]

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