Unnecessary LLM call for unused message summary title

[felipemadero]

When a user sends a message, summarizeMessage makes an LLM call to generate a summary.title. This title is stored but never displayed anywhere in the UI.

This wastes an LLM call per user message, noticeable with local models.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [Sessions] Title generation is requested on every message #9460: [Sessions] Title generation is requested on every message

Both issues report unnecessary LLM calls for message/title generation that appears to be unused or redundant. Feel free to ignore if your specific case differs.