feat(gui): add wayne's GUI Home Manager config matching the nixos user

Adds nextcloud-client, chromium, git, vim, claude-code, fish, sops,
the Nextcloud tray service, SOPS_AGE_KEY_FILE, and Proxmox/PBS desktop
shortcuts to wayne's HM config on GUI hosts. Uses lib.mkDefault on the
EDITOR setting in ipa/client.nix so the GUI layer can override to vim.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

modules/build-types/gui.nix

@@ -81,4 +81,70 @@
   programs.firefox.enable = true;
 
   nixpkgs.config.allowUnfree = true;
+
+  # GUI-specific Home Manager additions for the IPA primary user, extending
+  # the baseline in modules/ipa/client.nix with desktop apps and services
+  # that only make sense on a graphical workstation.
+  home-manager.users.${vars.ipaUser} = { pkgs, ... }: {
+    home = {
+      packages = with pkgs; [
+        git
+        vim
+        nextcloud-client
+        chromium
+        claude-code
+        fish
+        sops
+      ];
+      sessionVariables = {
+        EDITOR = "vim";
+        SOPS_AGE_KEY_FILE = "/home/${vars.ipaUser}/.config/sops/age/keys.txt";
+      };
+      file = {
+        ".local/share/applications/proxmox-chromium-app.desktop".text = ''
+          [Desktop Entry]
+          Type=Application
+          Name=Proxmox (Chromium)
+          Exec=chromium --app=https://pve.${vars.homeDomain}:${toString vars.ports.pveWeb} --window-size=1920,1080 --window-position=0,0
+          Icon=/home/${vars.ipaUser}/.local/share/icons/proxmox.png
+          Terminal=false
+          Categories=Hypervisor;
+          StartupWMClass=PVE
+        '';
+        ".local/share/applications/pbs-chromium-app.desktop".text = ''
+          [Desktop Entry]
+          Type=Application
+          Name=Proxmox Backup Server (Chromium)
+          Exec=chromium --app=https://${vars.pbsIp}:${toString vars.ports.pbsWeb} --window-size=1920,1080 --window-position=0,0
+          Icon=/home/${vars.ipaUser}/.local/share/icons/proxmox.png
+          Terminal=false
+          Categories=backup;
+        '';
+        ".local/share/applications/proxmox-firefox-app.desktop".text = ''
+          [Desktop Entry]
+          Type=Application
+          Name=Proxmox (Firefox)
+          Exec=firefox --new-instance https://pve.${vars.homeDomain}:${toString vars.ports.pveWeb} --profile ProxmoxWebApp --window-size=1920,1080 --class ProxmoxWebApp
+          Icon=/home/${vars.ipaUser}/.local/share/icons/proxmox.png
+          Terminal=false
+          Categories=Hypervisor;
+          StartupWMClass=PVE
+        '';
+        ".local/share/applications/pbs-firefox-app.desktop".text = ''
+          [Desktop Entry]
+          Type=Application
+          Name=Proxmox Backup Server (Firefox)
+          Exec=firefox --new-window https://${vars.pbsIp}:${toString vars.ports.pbsWeb} --profile PbsWebApp --window-size=1920,1080 --class PbsWebApp
+          Icon=/home/${vars.ipaUser}/.local/share/icons/proxmox.png
+          Terminal=false
+          Categories=backup;
+          StartupWMClass=PBS
+        '';
+      };
+    };
+    services.nextcloud-client = {
+      enable = true;
+      startInBackground = true;
+    };
+  };
 }

modules/ipa/client.nix

@@ -202,7 +202,7 @@ lib.mkIf enabled {
       homeDirectory = lib.mkForce "/home/${vars.ipaUser}";
       stateVersion = "26.05";
       packages = with pkgs; [ tmux sshfs ];
-      sessionVariables.EDITOR = "nano";
+      sessionVariables.EDITOR = lib.mkDefault "nano";
     };
     programs.home-manager.enable = true;
     programs.bash.enable = true;