- Implement complete ProtonDrive storage driver with end-to-end encryption support
- Add authentication via username/password with credential caching and reusable login
- Support all core operations: List, Link, Put, Copy, Move, Remove, Rename, MakeDir
- Include encrypted file operations with PGP key management and node passphrase handling
- Add temporary HTTP server for secure file downloads with range request support
- Support media streaming using temp server range requests
- Implement progress tracking for uploads and downloads
- Support directory operations with circular move detection
- Add proper error handling and panic recovery for external library integration
Closes#9312