### What problem does this PR solve?
This PR improves the table upload flow for CSV/Excel files by allowing
table column role configuration at upload time.
Previously, users had to:
1. Upload and parse a table file.
2. Open parser settings and manually set table column roles.
3. Re-parse the file for the roles to take effect.
This was inefficient and required an unnecessary second parse.
With this change:
1. When the knowledge base uses table parsing, the upload dialog
extracts CSV/Excel headers client-side.
2. Users can choose Auto mode or Manual mode.
3. In Manual mode, users can assign per-column roles before upload.
4. The selected parser config is sent with the upload request and
applied server-side during document creation.
Result: configured table column roles are applied from the first parse.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
Co-authored-by: Ahmad Intisar <ahmadintisar@Ahmads-MacBook-M4-Pro.local>
### What problem does this PR solve?
Necessary ids for implementing the new testing suite with playwright for
UI
### Type of change
- [x] Other (please describe): Testing IDs
Co-authored-by: Liu An <asiro@qq.com>
### What problem does this PR solve?
Fixes: Fixed some bugs #10703
- Removed S3 upload from the file upload component
- Updated the dropdown menu style on the model provider page
- Updated some model provider icons
- Fixed other style issues
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix: The Context Generator node can only be followed by a Tokenizer and
a Context Generator. #9869
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Allow users to parse documents directly after uploading files
#3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix: Remove the file size and quantity restrictions of the upload
control #9613#9598
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Feat: Replace the submit form button with ButtonLoading #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Save the configuration information of the knowledge base document
#3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Feat: Add FileUploadDialog #3221
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
