实现消息记录功能，包括增删改查和标记已读，优化消息列表展示和未读消息计数

WebApi/Controllers/Dto/BaseResponse.cs

@@ -20,6 +20,14 @@ public class BaseResponse
             Message = message
         };
     }
+
+    public static BaseResponse Done()
+    {
+        return new BaseResponse
+        {
+            Success = true
+        };
+    }
 }
 
 public class BaseResponse<T> : BaseResponse
@@ -37,5 +45,14 @@ public class BaseResponse<T> : BaseResponse
             Message = message
         };
     }
+
+    public static BaseResponse<T> Done(T data)
+    {
+        return new BaseResponse<T>
+        {
+            Success = true,
+            Data = data
+        };
+    }
 }
 

WebApi/Controllers/Dto/PagedResponse.cs

@@ -22,4 +22,16 @@ public class PagedResponse<T> : BaseResponse<T[]>
             Message = message
         };
     }
+
+    public static PagedResponse<T> Done(T[] data, int total, long lastId = 0, DateTime? lastTime = null)
+    {
+        return new PagedResponse<T>
+        {
+            Success = true,
+            Data = data,
+            LastId = lastId,
+            LastTime = lastTime,
+            Total = total
+        };
+    }
 }