- Add SSRF protection and migrate sensitive credentials to tempfiles
- Refactor aria2c process management to use ephemeral JSON-RPC
- Implement sysinfo recursive process termination for graceful stopping
- Add DownloadManager and MPSC queue for strict concurrency limits
- Configure yt-dlp to delegate download chunking to aria2c
- Replaced plaintext local storage password fields with keyring v3 OS native integration.
- Tauri backend securely sets, gets, and deletes credentials via system keychains.
- Dynamic password injection occurs seamlessly on download start and metadata parsing.
NimBold