[Feature]: Global Search for Topics

[DarkFlameMasterDev]

Issue Checklist

• I understand that issues are for reporting problems and requesting features, not for off-topic comments, and I will provide as much detail as possible to help resolve the issue.
• I have checked the pinned issues and searched through the existing open issues, closed issues, and discussions and did not find a similar suggestion.
• I have provided a short and descriptive title so that developers can quickly understand the issue when browsing the issue list, rather than vague titles like "A suggestion" or "Stuck."
• The latest version of Cherry Studio does not include the feature I am suggesting.

Platform

Windows

Version

1.7.13

Is your feature request related to an existing issue?

Currently, Cherry Studio lacks a direct way to search through conversation history in the main view. I noticed that topic search is only available when entering the "Multi-select/Batch" mode. This is inconvenient because users have to perform extra steps just to find a specific conversation.

Additional context
Users often need to:

Check if they have discussed a certain topic before.
Quickly retrieve content from previous conversations.
Having a global search function is crucial for managing conversation history efficiently.

Desired Solution

I suggest adding a persistent search bar at the top of the conversation list (sidebar).
It should allow filtering conversation titles by keywords in real-time.
Ideally, it would be great if it could also search within the message content, but searching titles is the priority.

Alternative Solutions

No response

Additional Information

No response