补齐移动壳Metro导出烟测

新增 Expo iOS 和 Android production bundle 导出检查

将 mobile-shell:export 纳入原生壳统一验收

同步宿主壳方案、能力协议和共享记忆验收口径

package.json

@@ -13,6 +13,7 @@
     "mobile-shell:typecheck": "npm --prefix apps/mobile-shell run typecheck",
     "mobile-shell:test": "npm --prefix apps/mobile-shell run test",
     "mobile-shell:config": "npm --prefix apps/mobile-shell run config:smoke",
+    "mobile-shell:export": "npm --prefix apps/mobile-shell run export:smoke",
     "desktop-shell:dev": "npm --prefix apps/desktop-shell run dev",
     "desktop-shell:build": "npm --prefix apps/desktop-shell run build --",
     "desktop-shell:typecheck": "npm --prefix apps/desktop-shell run typecheck",