Fix Duplicate Upload Start Broadcasts and Update Upload Progress Handling

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These changes optimize the upload process by preventing unnecessary event broadcasts, ensuring accurate progress tracking, and improving overall system efficiency.

Changelog:

• Eliminated Redundant Upload Start Events:

  • Removed duplicate calls to broadcast(:upload_started) in Ftp::UploadMkvService.
  • Adjusted upload_ready method in UploadProgressListener to prevent redundant invocation of upload_started.

• Improved Upload Progress Tracking:

  • Ensured job.metadata['completed'] is accurately initialized and updated.
  • Fixed the sequence of setting job.metadata['completed'] in upload_finished to use the correct value from video_blob.byte_size.

• Updated Upload Worker Initialization:

  • Correctly instantiated UploadProgressListener with necessary parameters in UploadWorker.

• Enhanced Video Blob Management:

  • Updated video_blob attributes (uploadable, uploaded_on) upon upload completion.