fix(framework): access scene key via sys.settings in PhaserScene

Use `scene.sys.settings.key` instead of `scene.scene.key` to correctly
retrieve the scene key from the Phaser scene instance.

packages/framework/src/ui/PhaserBridge.tsx

@@ -215,7 +215,7 @@ export function PhaserScene<TData = {}>(props: PhaserSceneProps<TData>) {
 
     // 注册场景到 Phaser（但不启动）
     const scene = "scene" in props.scene ? props.scene : new props.scene();
-    const sceneKey = props.sceneKey ?? scene.scene.key;
+    const sceneKey = props.sceneKey ?? scene.sys.settings.key;
     if (!game.scene.getScene(sceneKey)) {
       const initData = {
         ...props.data,