- Add SFTP mode for servers (separate from terminal sessions)
- Dual-panel file manager: local files on left, remote on right
- File operations: upload, download, rename, delete, create folder
- Drag-and-drop file transfers between panels
- Built-in text editor for remote files (.env, .js, .json, etc.)
- Visual indication for editable text files (green icon + pencil)
- Transfer progress tracking panel
- Resizable sidebar (default 300px)
- Support for .env.example, .env.local and similar file patterns