fix: 补窗口标题字段缺失的构造点

修 E0063：InstanceLaunchOverridesPatch 和 InstanceLaunchOverrides 的两处完整构造漏了 window_title。

packages/app-lib/src/state/legacy_converter.rs

@@ -621,6 +621,7 @@ where
         force_fullscreen: input.force_fullscreen,
         maximize_window: None,
         game_resolution: input.game_resolution,
+        window_title: None,
         launch_preparation_timeout: None,
         hooks: input.hooks,
     };