chore: 初始化仓库基线（AGENTS.md、git 规范、敏感文件排除）

app/metro.config.js

@@ -0,0 +1,16 @@
+const { getDefaultConfig, mergeConfig } = require('@react-native/metro-config');
+
+const defaultConfig = getDefaultConfig(__dirname);
+
+const config = {
+  transformer: {
+    getTransformOptions: async () => ({
+      transform: {
+        experimentalImportSupport: false,
+        inlineRequires: true,
+      },
+    }),
+  },
+};
+
+module.exports = mergeConfig(defaultConfig, config);