feat(wxapi): 新增用户在小程序“客服会话按钮”进入客服会话时产生的回调通知事件模型

src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/MiniProgramPageMessageEvent.cs

@@ -2,7 +2,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 MINIPROGRAMPAGE 事件的数据。</para>
-    /// <para>REF: https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Receiving_standard_messages.html#%E6%96%87%E6%9C%AC%E6%B6%88%E6%81%AF </para>
+    /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/customer-message/receive.html </para>
     /// </summary>
     public class MiniProgramPageMessageEvent : WechatApiEvent, WechatApiEvent.Serialization.IJsonSerializable, WechatApiEvent.Serialization.IXmlSerializable
     {

src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpPush/UserEnterTempSessionEvent.cs

@@ -0,0 +1,17 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+{
+    /// <summary>
+    /// <para>表示 EVENT.user_enter_tempsession 事件的数据。</para>
+    /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/customer-message/receive.html </para>
+    /// </summary>
+    public class UserEnterTempSessionEvent : WechatApiEvent, WechatApiEvent.Serialization.IJsonSerializable, WechatApiEvent.Serialization.IXmlSerializable
+    {
+        /// <summary>
+        /// 获取或设置会话来源。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("SessionFrom")]
+        [System.Text.Json.Serialization.JsonPropertyName("SessionFrom")]
+        [System.Xml.Serialization.XmlElement("SessionFrom")]
+        public string SessionFrom { get; set; } = default!;
+    }
+}

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/EventSamples/MpPush/UserEnterTempSessionEvent.json

@@ -0,0 +1,8 @@
+{
+    "ToUserName": "toUser",
+    "FromUserName": "fromUser",
+    "CreateTime": 1482048670,
+    "MsgType": "event",
+    "Event": "user_enter_tempsession",
+    "SessionFrom": "sessionFrom"
+}

test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/EventSamples/MpPush/UserEnterTempSessionEvent.xml

@@ -0,0 +1,8 @@
+<xml>
+    <ToUserName><![CDATA[toUser]]></ToUserName>
+    <FromUserName><![CDATA[fromUser]]></FromUserName>
+    <CreateTime>1482048670</CreateTime>
+    <MsgType><![CDATA[event]]></MsgType>
+    <Event><![CDATA[user_enter_tempsession]]></Event>
+    <SessionFrom><![CDATA[sessionFrom]]></SessionFrom>
+</xml>