feat(mini): v4.0.8 客服卡片主包落地、定位误报修复，合伙人微信内预览保存海报

Co-authored-by: Cursor <cursoragent@cursor.com>

packages/weixin-sdk/src/index.ts

@@ -25,6 +25,7 @@ export { scanQrCode } from './scan';
 export { invokeWechatPay } from './pay';
 export { chooseWechatImages, canUseWechatChooseImage, formatChooseImageFailMessage } from './chooseImage';
 export type { ChooseWechatImageOptions } from './chooseImage';
+export { previewWechatImage, isHttpImageUrl } from './previewImage';
 export {
   setWechatShareData,
   canUseWechatShare,
@@ -53,6 +54,7 @@ import { getWechatLocation, getWechatLocationDetailed } from './location';
 import { scanQrCode } from './scan';
 import { invokeWechatPay } from './pay';
 import { chooseWechatImages } from './chooseImage';
+import { previewWechatImage } from './previewImage';
 import { setWechatShareData, shareViaWechatSdk } from './share';
 import {
   wechatLogin,
@@ -76,6 +78,7 @@ export function createWeixinSdk(config: WeixinSdkConfig) {
     scanQrCode: (options?: Parameters<typeof scanQrCode>[1]) => scanQrCode(config, options),
     chooseImages: (options?: Parameters<typeof chooseWechatImages>[1]) =>
       chooseWechatImages(config, options),
+    previewImage: (url: string) => previewWechatImage(config, url),
     pay: (prepay: Parameters<typeof invokeWechatPay>[0]) =>
       invokeWechatPay(prepay, {
         apiBase: config.apiBase ?? '/api/v1',