first commit

DTOs/Mobile/ChatRequests.cs

@@ -0,0 +1,15 @@
+namespace Fitness_core_BE.DTOs.Mobile
+{
+    public class GetOrCreateChatRequest
+    {
+        public Guid OtherUserId { get; set; }
+    }
+
+    public class SendChatMessageRequest
+    {
+        public Guid ChatId { get; set; }
+        public Guid SenderId { get; set; }
+        public string Message { get; set; } = string.Empty;
+        public string Type { get; set; } = "text";
+    }
+}