✨ SSH for Remote Hosts and Remote System Explorer (RSE)

### Description

Support for connecting to remote hosts via SSH is essential for developers who work in distributed or server-based environments. This feature would allow users to open remote projects, edit files, and navigate remote file systems directly within the app.

### Proposed Features

- SSH Integration:
- Connect to remote machines via SSH
- Manage and save SSH connection profiles (host, port, auth method, etc.)
- Support for private key authentication and passphrases
- Maintain secure and persistent connections
- Remote System Explorer (RSE):
- Browse and interact with remote file systems in a dedicated navigator
- Support basic file operations (create, delete, rename, move, copy)
- Open and edit remote files in-place with seamless sync
- Show connection and path status in the UI
- Optionally cache file metadata or contents for performance

Future Considerations:
- Terminal access to remote hosts
- Remote debugging support
- Integration with remote language servers and build tools

### Additional Context:

This feature will greatly expand the use cases for developers working on servers, containers, or embedded systems, where local access to code is not always possible.