feat: add support for ssh based connections

[anas-codnetwork]

Summary

Add support for establishing connections over SSH in addition to the existing connection methods.

Motivation

Many users access remote systems exclusively through SSH. Supporting SSH-based connections would improve security, enable access to remote environments, and make the project more flexible for a wider range of deployment scenarios.

Proposed Solution

• Add support for SSH authentication (e.g., private key and/or password).
• Allow users to configure SSH connection parameters such as:
  • Host
  • Port
  • Username
  • Authentication method (private key or password)
• Establish a secure SSH session before communicating with the remote service.
• Handle common SSH errors gracefully (authentication failures, unreachable host, timeouts, etc.).

Expected Behavior

• Users can create and use SSH-based connections.
• Existing connection methods continue to work without changes.
• Connection failures provide clear and actionable error messages.

Additional Considerations

• Support encrypted private keys if applicable.
• Consider host key verification and known_hosts management.
• Ensure sensitive credentials are stored securely.
• Add documentation and examples for configuring SSH connections.