Create AuthResponse DTO to standardize between success and failed response

src/main/java/com/safetypin/authentication/dto/AuthResponse.java

+package com.safetypin.authentication.dto;
+
+import lombok.*;
+
+@Data
+@Getter
+@Setter
+@AllArgsConstructor
+public class AuthResponse {
+    private boolean success;
+    private String message;
+    private Object data;
+}
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