[FIX] Use server SSH port for default Firewall Rules

[RichardAnderson]

This pull request updates the way the SSH port is handled during firewall rule creation and UFW installation, allowing for custom SSH ports instead of assuming the default port 22. It also adds comprehensive tests to ensure this behavior is correct. The main improvements are grouped into logic updates, template changes, and new tests.

Firewall logic and behavior updates:

• The SSH firewall rule now uses the server's custom SSH port if set, defaulting to 22 otherwise, in AbstractFirewall.php.
• The UFW installation process now passes the correct SSH port to the installation script, using the server's configured port or defaulting to 22, in Ufw.php.

Template/script changes:

• The UFW install script template (install-ufw.blade.php) now dynamically uses the provided SSH port instead of hardcoding port 22.

Testing improvements:

• Added a new test suite (UfwInstallTest.php) to verify that:
  • The SSH firewall rule uses a custom port if set, or 22 by default.
  • HTTP/HTTPS rules remain unchanged regardless of SSH port configuration.

Resolves #1082

[Copilot]

Pull request overview

This PR fixes firewall/UFW installation behavior to respect a server’s configured SSH port (instead of hardcoding port 22), addressing the lockout scenario described in issue #1082.

Changes:

• Seed the default “SSH” firewall rule using the server’s configured SSH port (fallback 22).
• Pass the server SSH port into the UFW install script template and use it when opening the SSH rule.
• Add unit tests to validate firewall rule seeding behavior for custom/default SSH ports.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
app/Services/Firewall/AbstractFirewall.php	Seeds the SSH firewall rule with the server’s configured SSH port (fallback 22).
app/Services/Firewall/Ufw.php	Passes sshPort into the UFW install view so the script can open the correct port.
resources/views/ssh/services/firewall/ufw/install-ufw.blade.php	Uses the provided sshPort instead of hardcoding 22 in the UFW allow command.
tests/Unit/SSH/Services/Firewall/UfwInstallTest.php	Adds tests for seeding SSH rule with custom/default port and keeping HTTP/HTTPS unchanged.

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