Resolve SSH host parameters in auth forms and CLI connections while preserving explicit user, bookmark, and parsed alias values. Continue forwarding SSH config files for HostName and other SSH options, and document the precedence in English and Chinese.
Closes#441
Remove production panic and unwrap paths from core modules.
Propagate bookmark encryption failures, harden file watcher and temp mapped file handling, and clean up dead code in shared utilities.
Christian Visintin