Removes a redundant `const normalizedInfoHash` declaration in `s3UploadService.js` that caused a `SyntaxError` and prevented the application from loading. The variable is already declared in the outer scope of the `try` block.
- Refactored `UploadModal.js` to trigger uploads immediately on file selection.
- Added progress bars and result fields (Video URL, Magnet, Torrent) to the UI.
- Fixed a crash in `r2Service.js` caused by `userLogger.debug` usage.
- Exposed `prepareUpload` and `uploadFile` methods in `r2Service` and `s3UploadService` for granular control.
- Updated `upload-modal.html` with new UI elements.
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