feat(hypridle): define config in home-manager with per-host timeouts

Replace the static hypridle.conf with services.hypridle.settings and add required timeout options so each host tunes its own values:

- idols-ai (PC): 15 min keyboard, 20 min screen-off, 30 min lock.
- 12kingdoms-shoukei (laptop): 3 / 6 / 20 min (previous values).

The options have no defaults because the right values depend on the machine. Update the home-manager eval test to inspect the settings option instead of the old config file text.

outputs/aarch64-linux/tests/home-manager/expr.nix

@@ -13,22 +13,15 @@ lib.genAttrs hosts (
   name:
   let
     hm = outputs.nixosConfigurations.${name}.config.home-manager.users.${username};
-    hypridleConfig = builtins.readFile hm.xdg.configFile."hypr/hypridle.conf".source;
-    hasHypridleLines = lines: lib.hasInfix (lib.concatStringsSep "\n" lines) hypridleConfig;
+    listeners = hm.services.hypridle.settings.listener;
+    findByAction = action: lib.findFirst (l: (l."on-timeout" or "") == action) { } listeners;
+    screenOff = findByAction "niri msg action power-off-monitors";
+    lock = findByAction "noctalia-shell ipc call lockScreen lock";
   in
   {
     homeDirectory = hm.home.homeDirectory;
-    hypridleScreenOffIgnoresInhibitors = hasHypridleLines [
-      "    timeout = 360                                      # 6 minutes"
-      "    ignore_inhibit = true"
-    ];
-    hypridleScreenOffSkipsPlayingMedia = hasHypridleLines [
-      "    condition_cmd = ! playerctl -a status 2>/dev/null | grep -q '^Playing$'"
-      "    condition_retry = 30"
-    ];
-    hypridleLockIgnoresInhibitors = hasHypridleLines [
-      "    timeout = 1200                                     # 20 minutes"
-      "    ignore_inhibit = true"
-    ];
+    hypridleScreenOffIgnoresInhibitors = screenOff.ignore_inhibit or false;
+    hypridleScreenOffSkipsPlayingMedia = (screenOff.condition_cmd or "") != "";
+    hypridleLockIgnoresInhibitors = lock.ignore_inhibit or false;
   }
 )