- Add streaming cipher module using libsodium's secretstream API
- Update file and metadata decryption to use streaming XChaCha20-Poly1305
- Fix decryption issues - files now properly decrypt
- Successfully tested with real account - exports working for smaller files
The export now correctly decrypts files using the same streaming cipher
as the Go implementation. Large files may need chunked decryption support.
Co-Authored-By: Claude <noreply@anthropic.com>