feat(hyprland): migrate desktop utility bindings

configs/nixos/modules/desktop/utilities/screenshot.nix

@@ -37,27 +37,42 @@ in
     lib.mkEnableOption "screenshots via grimblast and satty";
 
   config = lib.mkIf config.modules.desktop.utilities.screenshot.enable {
+    registry.keybind.${config.networking.hostName} = {
+      screenshot-area = {
+        keys = "Print";
+        action = {
+          kind = "exec";
+          command = "${capture "area"}";
+        };
+      };
+
+      screenshot-active = {
+        keys = "SHIFT + Print";
+        action = {
+          kind = "exec";
+          command = "${capture "active"}";
+        };
+      };
+
+      screenshot-screen = {
+        keys = "CTRL + Print";
+        action = {
+          kind = "exec";
+          command = "${capture "screen"}";
+        };
+      };
+    };
+
     home-manager.users.${user} = {
       # satty is a one-shot annotation surface, so float it rather than letting
       # it claim a tile in the layout.
-      # windowrule v3 syntax: space-separated field/value tokens, comma
-      # separated, with matchers under a match: prefix and effects bare.
-      /*
-      wayland.windowManager.hyprland.settings.windowrule = [
-        "float 1, match:class ^(com\\.gabm\\.satty)$"
+      wayland.windowManager.hyprland.settings.window_rule = [
+        {
+          match.class = "^(com\\.gabm\\.satty)$";
+          float = true;
+        }
       ];
-      */
 
-      # Print with plain/Shift/Ctrl for region/window/full.
-      # Super+L is already the hjkl focus and movement bind, so screenshots take
-      # the Print key instead.
-      /*
-      wayland.windowManager.hyprland.settings.bind = [
-        ", Print, exec, ${capture "area"}"
-        "SHIFT, Print, exec, ${capture "active"}"
-        "CTRL, Print, exec, ${capture "screen"}"
-      ];
-      */
     };
   };
 }