TASK:模块化；

src/main/java/com/ai/da/model/dto/ProgressDTO.java

@@ -0,0 +1,15 @@
+package com.ai.da.model.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class ProgressDTO {
+    private int total;
+    private int current;
+    private boolean error;
+}
+