- SFTPBrowserTab with remote directory browsing
- Open via Ctrl+F from host list
- Navigate dirs, filter with /, refresh with r
- Dir/icon display with file sizes
- Sort dirs first, then by name
- HostFormTab with textinput fields for all host fields
- Add (Ctrl+N) and Edit (Ctrl+E) from host list
- Save to JSON storage, auto-reload on save
- Esc to cancel, navigable form with keyboard