Add navi deployment module and integrate SSH inventory for remote management

- Introduced a new `navi` module for managing deployments across multiple hosts.
- Enhanced SSH inventory management to support public key application for authorized hosts.
- Configured system deployment builder for seamless integration with Navi.
- Updated various host configurations to enable deployment capabilities and streamline SSH access.

modules/hosts/r5500/configuration.nix

@@ -9,6 +9,7 @@
     }:
     {
       imports = [
+        self.nixosModules.systemDeployBuilder
         self.nixosModules.r5500Hardware
         inputs.sops-nix.nixosModules.sops
         self.nixosModules.system
@@ -55,6 +56,8 @@
         extraPackages = with pkgs; [ btop git ];
       };
 
+      chiasson.system.deploy.builder.enable = true;
+
       chiasson.users = {
         enabled = [ "server" ];
         hostOverrides.server = {