[Feature]: Add a PatchMon CLI

What is the installation method of your PatchMon server?

Docker

What is the version of your PatchMon server?

2.0.2

Briefly describe the feature

Add a PatchMon CLI to quickly interact with a PatchMon server from the terminal.

Detailed description

The goal is to provide a command-line utility for common PatchMon server actions without requiring users to go through the web interface.

Initially, this CLI is not intended to cover every PatchMon server feature. Instead, it should focus on the workflows that are most useful from a terminal, including:

• listing hosts known by the PatchMon server;
• connecting to a host through an SSH proxy mechanism or equivalent;
• providing an extensible foundation so additional commands can be added later based on user feedback.

An initial implementation already exists in this branch:
agent/add-patchmon-cli-ssh-proxy

A pull request can be opened from this branch.

Why is this useful?

Some users primarily work from the terminal. For them, certain actions are faster and more natural through a CLI than through the web interface.
This feature would make daily workflows smoother, especially when users need to quickly list available hosts or start an SSH connection to a machine managed by PatchMon.
The CLI can then evolve progressively by adding new commands based on real user needs and feedback.