feat(app/game): 创建游戏页面，动态加载 Phaser 保证 SSR 安全

app/game/page.tsx

@@ -0,0 +1,55 @@
+'use client'
+
+import { useEffect, useRef } from 'react'
+
+/**
+ * 游戏页面
+ * Phaser 通过动态 import 加载，确保 SSR 安全（不在服务端执行）
+ */
+export default function GamePage() {
+  const gameRef = useRef<{ destroy: (removeCanvas: boolean) => void } | null>(null)
+
+  useEffect(() => {
+    let mounted = true
+
+    const initGame = async () => {
+      // 动态导入 Phaser，避免 SSR 环境报错
+      const Phaser = (await import('phaser')).default
+      const { createGameConfig } = await import('@/game/config')
+      const { createGameScene } = await import('@/game/GameScene')
+
+      if (!mounted) return
+
+      const GameScene = createGameScene(Phaser)
+      const config = createGameConfig('game-container')
+
+      // 注入场景
+      config.scene = [GameScene]
+
+      // 手动设置 scale mode（避免 SSR 时引用 Phaser.Scale 常量报错）
+      if (config.scale) {
+        config.scale.mode = Phaser.Scale.FIT
+        config.scale.autoCenter = Phaser.Scale.CENTER_BOTH
+      }
+
+      // type 设置
+      config.type = Phaser.AUTO
+
+      gameRef.current = new Phaser.Game(config)
+    }
+
+    initGame().catch(console.error)
+
+    return () => {
+      mounted = false
+      gameRef.current?.destroy(true)
+      gameRef.current = null
+    }
+  }, [])
+
+  return (
+    <div className="w-full h-screen overflow-hidden" style={{ backgroundColor: '#0F0F23' }}>
+      <div id="game-container" className="w-full h-full" />
+    </div>
+  )
+}