fix(kratos): launch Hyprland via wrapper from greetd

hosts/m3-kratos/services/greetd.nix

@@ -7,9 +7,9 @@
   ...
 }: let
   tuigreet = "${lib.getExe pkgs.tuigreet}";
-  # Use Hyprland directly - tuigreet's --cmd finds it via PATH
-  # Using the simple binary name allows greetd to launch it properly
-  hyprlandCmd = "Hyprland";
+  # Use start-hyprland wrapper to avoid Hyprland startup warnings
+  # withUWSM=true is set in programs.nix; start-hyprland handles this correctly
+  hyprlandCmd = "${config.programs.hyprland.package}/bin/start-hyprland";
 in {
   services.greetd = {
     enable = true;