- Remove extractVideoCoverOptional function and related video cover processing
- Update MaterialService.uploadFile method signature to remove coverBase64 parameter
- Simplify uploadAndIdentifyVideo function by removing cover generation logic
- Remove loading indicator from VideoSelector component during video preview
- Add presignGetUrlWithProcess method to FileClient interface for processed file URLs
- Add logging support to S3FileClient implementation
- Replace percentage-based quota with point-based display in sidebar
- Add visual progress bar for remaining quota with gradient styling
- Implement upload progress tracking in material upload modal
- Add loading indicators and progress information during file uploads
- Prevent modal interaction while uploading by disabling close controls
- Show current upload status including file index and completion percentage
