fix: 添加spring-boot-starter-validation依赖解决编译错误

pom.xml

@@ -111,6 +111,11 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+        <!-- Spring Boot Validation -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-validation</artifactId>
+        </dependency>
         <!-- MySQL Connector -->
         <dependency>
             <groupId>mysql</groupId>