fix: MQTT PUBLISH 接收修复 — topic 过滤 + cmd/Method 双格式支持

问题: mqtt_data_manage() 的 PUBLISH 分支直接调用 manage_mqtt_recv_message(),
      跳过了 mqtt_deserialize_publish() 的 topic 过滤, 且只支持旧 Method 格式.

修复:
- mqtt_data_manage: PUBLISH 改为走 mqtt_deserialize_publish 做 topic 匹配
- mqtt_deserialize_publish: topic 过滤已改用 g_iot_topic.topic_sub
- manage_mqtt_recv_message: 优先解析 cmd, 兼容旧 Method 字段

vd960DBN/BLE/OnlyUpdateApp_Peripheral/APP/net_srv.c

@@ -396,7 +396,12 @@ void mqtt_data_manage(uint8_t id)
         case PUBLISH:
             MQTTDeserialize_publish(&dup, &qos, &retained, &packetid,
                                      &topicName, &payload, &payloadlen, MyBuf, len);
-            manage_mqtt_recv_message((char *)payload, payloadlen);
+            /* V1.01: 通过 mqtt_deserialize_publish 做 topic 过滤 */
+            {
+                char TmpBuf[128] = {0};
+                memcpy(TmpBuf, topicName.lenstring.data, topicName.lenstring.len);
+                mqtt_deserialize_publish(TmpBuf, (char *)payload, payloadlen);
+            }
             reset_net_active_timeup();
             break;
         case SUBACK:
@@ -1052,7 +1057,12 @@ void manage_mqtt_recv_message(char * msg, int length)
     }
 
     reset_temp_guide();
-    simple_parse_json(msg, DPG_API_KEY_METHOD, temp_guide);
+    
+    // V1.01: 优先解析新协议 cmd 字段，兼容旧 Method 字段
+    simple_parse_json(msg, "\"cmd\"", temp_guide);
+    if(strlen(temp_guide) == 0) {
+        simple_parse_json(msg, DPG_API_KEY_METHOD, temp_guide);
+    }
     
     if(strlen(temp_guide) == 0)
     {
@@ -1060,9 +1070,16 @@ void manage_mqtt_recv_message(char * msg, int length)
         return;
     }
     PRINT("Rcv_Dis_LED_m:%s\n", temp_guide);
+    
+    // 旧协议: Method = Heartbeat → 回复心跳
     if(strstr(temp_guide, "Heartbeat") != NULL)
     {
         dev_response_heartbeat(NULL);
+    }
+    // 新协议: 解析 cmd 并打印（后续可扩展命令处理）
+    else if(strlen(temp_guide) > 0)
+    {
+        PRINT("MQTT cmd/method: %s, raw: %s\n", temp_guide, msg);
     }
      else {
         PRINT("Unknown MQTT method: %s\n", msg);