refactor: 拆分微信API到独立项目并迁移相关代码

1.  新增WeChatApi独立项目，将原WebApi中的微信相关控制器迁移至新项目
2.  新增后台权限管理相关实体、服务接口和基础控制器
3.  完善管理员用户服务，增加角色关联查询和赋值逻辑
4.  修复WebApi Swagger文档过滤微信API版本的问题
5.  更新解决方案文件，添加新的微信API项目引用
6.  新增微信API基础配置文件和项目属性配置

QYZH.InteractiveMagazine.WeChatApi/Properties/launchSettings.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:51131",
+      "sslPort": 44367
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5198",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "https://localhost:7253;http://localhost:5198",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}