KGet 1.6.2

SFTP downloads were completely non-functional. The previous implementation passed the full sftp://… URL string directly to TcpStream::connect and used it as the remote file path, causing an immediate connection error on every SFTP call. The module is now fully rewritten:
- URL is parsed to extract host, port, username, and remote_path correctly.
- Authentication tries in priority order: password embedded in the URL → running SSH agent → default key files (~/.ssh/id_ed25519, ~/.ssh/id_rsa, ~/.ssh/id_ecdsa).
- File is streamed in 32 KB chunks with a real-time progress bar.
- Clear, actionable error messages at every failure point.
FTP anonymous login failed when the URL contained no username. url.username() from the url crate returns an empty string "" (not None) when the URL has no user segment. Passing "" to ftp.login() caused anonymous FTP servers to reject the connection. The downloader now falls back to "anonymous" in that case.

Interactive mode is now fully implemented. Previously kget --interactive opened a REPL that only printed "Would download: …" without performing any actual download. The mode is now feature-complete:
- Unicode block-font ASCII art banner on entry.
- rustyline line editor with persistent command history.
- download [flags] <url> — dispatches to the correct downloader based on flags:
  - Default: simple HTTP/HTTPS with retry and progress bar.
  - -a / --advanced / --turbo: AdvancedDownloader (parallel byte-range, resumable).
  - --ftp: FTP downloader with anonymous fallback.
  - --sftp: SFTP downloader with multi-method SSH auth.
  - --torrent or auto-detected magnet:? prefix: native torrent engine.
  - -o <path>, -q (quiet), --sha256 <hash> flags supported.
- config [show | set <key> <value>]: reads and persists settings (connections, speed-limit, compression, cache).
- clear, version, help / ? commands; get, dl as aliases for download.
- Errors are printed and the REPL continues — a failed download never crashes the session.

Mutex lock error handling in AdvancedDownloader: all .unwrap() calls on Mutex::lock() replaced with .expect("…") and descriptive messages, making panics easier to diagnose if a lock is ever poisoned.
Optimizer public API cleanup: removed #[allow(dead_code)] from the public methods compress, get_cached_file, and cache_file — these are valid library API surface and the suppression was masking legitimate lint signal.

Downloads

Install from crates.io:

cargo add Kget@1.6.2

Or install the CLI:

cargo install Kget

Use --features gui for the Rust GUI build and --features torrent-native for native torrent support.

See SHA256SUMS-1.6.2.txt attached to this release.