feat(hyprland): migrate home configs to lua configType

- Switch from hyprlang (hyprland.conf) to lua (hyprland.lua) config format
- Use configType = "lua" explicitly for clarity
- Replace exec-once with on = { _args = [...] } hook for startup commands
- Convert windowrule strings to window_rule attribute-set syntax with
  mkLuaInline match objects and option sets per Home Manager module
- Change mkIf guard from config.desktop.wm.hyprland.enable to
  config.wayland.windowManager.hyprland.enable (correct option path)
- Preserve all existing host-specific monitor layouts and window rules
- Both configs: m3-ares (eDP-1 + HDMI) and m3-kratos (DP-1 + DP-2)
- Run alejandra after changes; parse validation passes (exit 0)

Refs:
  - https://github.com/nix-community/home-manager/blob/master/modules/services/window-managers/hyprland.nix
  - https://wiki.hypr.land/Configuring/Start/

hosts/m3-kratos/home.nix

@@ -37,14 +37,19 @@ with lib; {
     }
 
     # ── Hyprland monitor layout ──
-    (mkIf config.desktop.wm.hyprland.enable {
+    (mkIf config.wayland.windowManager.hyprland.enable {
       wayland.windowManager.hyprland = {
         enable = true;
+        configType = "lua";
+
         settings = {
+          # Monitor configuration (dual 2560x1440@144 via DisplayPort)
           monitor = [
             "DP-1,2560x1440@144,0x0,1"
             "DP-2,2560x1440@144,2560x0,1"
           ];
+
+          # Workspace assignment
           workspace = [
             "1, monitor:DP-1, default:true"
             "2, monitor:DP-1"
@@ -54,13 +59,51 @@ with lib; {
             "6, monitor:DP-2"
             "7, monitor:DP-2"
           ];
-          windowrule = [
-            "match:class dev.zed.Zed, workspace 1"
-            "match:class Msty, workspace 1"
-            "match:class ^(com.obsproject.Studio)$, workspace 2"
-            "match:class ^(brave-browser)$, workspace 4, opacity 1.0"
-            "match:class ^(vivaldi-stable)$, workspace 4, opacity 1.0"
-            "match:class ^steam_app_\\d+$, idle_inhibit focus"
+
+          # Window rules using attribute-set syntax (match + options)
+          window_rule = [
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "dev.zed.Zed" })'')
+                {workspace = 1;}
+              ];
+            }
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "Msty" })'')
+                {workspace = 1;}
+              ];
+            }
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "com\\.obsproject\\.Studio" })'')
+                {workspace = 2;}
+              ];
+            }
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "brave-browser" })'')
+                {
+                  workspace = 4;
+                  opacity = 1.0;
+                }
+              ];
+            }
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "vivaldi-stable" })'')
+                {
+                  workspace = 4;
+                  opacity = 1.0;
+                }
+              ];
+            }
+            {
+              _args = [
+                (lib.generators.mkLuaInline ''hl.dsp.window.match({ class = "steam_app_\\d+" })'')
+                {idle_inhibit = "focus";}
+              ];
+            }
           ];
         };
       };