refactor(hosts): simplify configuration imports across hosts

modules/hosts/canopus/config.nix

@@ -10,7 +10,6 @@
     {
       imports = with config.flake.modules.nixos; [
         boot
-        hardware
         networking
         desktop
         gaming
@@ -120,20 +119,7 @@
         firewall.enable = false;
       };
 
-      # --- Hardware / GPU ---
-      # hardware = {
-      #   nvidia = {
-      #     modesetting.enable = true;
-      #     open = false;
-      #     nvidiaSettings = true;
-      #   };
-      # };
-      # boot.kernelParams = [ "nvidia-drm.modeset=1" ];
-      # nixpkgs.config.cudaSupport = true;
-      # services.xserver.videoDrivers = [ "nvidia" ];
-
       environment.systemPackages = with pkgs; [
-        nvtopPackages.full
         davinci-resolve
         telegram-desktop
       ];