### What problem does this PR solve?
Feat: Remove unnecessary dialogue-related code. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
This PR closing feature request #11286.
It implements ability to choose the background theme of the _Full screen
chat_ which is Embed into webpage.
Looks like that:
<img width="501" height="349" alt="image"
src="https://github.com/user-attachments/assets/e5fdfb14-9ed9-43bb-a40d-4b580985b9d4"
/>
It works similar to `Locale`, using url parameter to set the theme.
if the parameter is invalid then is using the default theme.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Your Name <you@example.com>
### What problem does this PR solve?
Feat: Replace antd in the chat message with shadcn. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Delete useless knowledge base, chat, and search files. #10427
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Reset all data except the first one on the chat page shared with
others #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Displays the embedded page of the chat module #3221
Feat: Let the agen operator support the selection of tts model #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
feat(agent): Adds prologue functionality #3221
- Add a prologue field to the IInputs type
- Initialize the prologue state in the chat container
- Use useEffect to monitor prologue changes and add prologue responses
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Fixed the issue where the agent's chat box could not automatically
scroll to the bottom #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: Fixed the loss of Await Response function on the share page and
other style issues #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: New Agent startup parameters add knowledge base parameter #9194
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Fixed share-log UI issues and log-template bugs #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Modify the style of the agent page bright theme #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Automatically save agent canvas content
Feat: Replace the link of the old version of the agent module #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Make the agent dialog window exposed to the outside world fill in
the begin form #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add log-detail page,Improve the style of chat boxes #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Render the uploaded agent message file #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add agent log-sheet in cavas and log-sheet in share's page #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Upload files in the chat box on the agent page #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Share agent dialog box externally #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
…be seen when selecting the next operator #3221
### What problem does this PR solve?
Fix: Fixed the issue that the content of the Dropdown section cannot be
seen when selecting the next operator #3221
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
