feat: add React Native support to aiCore package

Add React Native compatibility configuration to package.json, including the
react-native field and updated exports mapping. Include documentation for
React Native usage with metro.config.js setup instructions.

packages/aiCore/README.md

@@ -45,6 +45,23 @@ Cherry Studio AI Core 是一个基于 Vercel AI SDK 的统一 AI Provider 接口
 npm install @cherrystudio/ai-core ai
 ```
 
+### React Native
+
+如果你在 React Native 项目中使用此包，需要在 `metro.config.js` 中添加以下配置：
+
+```javascript
+// metro.config.js
+const { getDefaultConfig } = require('expo/metro-config');
+
+const config = getDefaultConfig(__dirname);
+
+// 添加对 @cherrystudio/ai-core 的支持
+config.resolver.resolverMainFields = ['react-native', 'browser', 'main'];
+config.resolver.platforms = ['ios', 'android', 'native', 'web'];
+
+module.exports = config;
+```
+
 还需要安装你要使用的 AI SDK provider:
 
 ```bash

packages/aiCore/package.json

@@ -3,7 +3,9 @@
   "version": "1.0.0-alpha.0",
   "description": "Cherry Studio AI Core - Unified AI Provider Interface Based on Vercel AI SDK",
   "main": "dist/index.js",
+  "module": "dist/index.mjs",
   "types": "dist/index.d.ts",
+  "react-native": "dist/index.js",
   "scripts": {
     "build": "tsdown",
     "dev": "tsc -w",
@@ -120,19 +122,27 @@
     "tsdown": "^0.12.9",
     "typescript": "^5.0.0"
   },
+  "sideEffects": false,
+  "engines": {
+    "node": ">=18.0.0"
+  },
   "files": [
     "dist"
   ],
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
+      "react-native": "./dist/index.js",
       "import": "./dist/index.mjs",
-      "require": "./dist/index.js"
+      "require": "./dist/index.js",
+      "default": "./dist/index.js"
     },
     "./core/plugins/built-in": {
       "types": "./dist/core/plugins/built-in/index.d.ts",
+      "react-native": "./dist/core/plugins/built-in/index.js",
       "import": "./dist/core/plugins/built-in/index.mjs",
-      "require": "./dist/core/plugins/built-in/index.js"
+      "require": "./dist/core/plugins/built-in/index.js",
+      "default": "./dist/core/plugins/built-in/index.js"
     }
   }
 }