feat: External source imports (Dropbox, Google Drive, URL) #3
Description
Description
Add support for importing files from external sources like Dropbox, Google Drive, OneDrive, Instagram, and direct URLs. The module would handle OAuth flows and fetching file data, presenting them as regular UploadFile objects.
Context
The FileSource type already includes placeholders for instagram, dropbox, google-drive, onedrive. Users often need to import existing assets from cloud storage rather than uploading from their local machine.