feat(feedback): 补提交 feedback 相关源码（漏提交的新建文件）

src/main/java/com/superbiz/agent/dto/FeedbackRequest.java

@@ -0,0 +1,11 @@
+package com.superbiz.agent.dto;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class FeedbackRequest {
+    private String sessionId;
+    private String feedback;
+}