feat: add WeChat sharing and invite flow

Podfile

@@ -8,10 +8,12 @@ target 'suixinkan' do
   pod 'UMCommon'
   pod 'UMDevice'
   pod 'UMAPM'
-end
+  # 微信 Open SDK：仅接入分享能力，不调用支付 API。
+  pod 'WechatOpenSDK-XCFramework', '~> 2.0.4'
 
-target 'suixinkanTests' do
-  inherit! :search_paths
+  target 'suixinkanTests' do
+    inherit! :search_paths
+  end
 end
 
 post_install do |installer|