test: 更新测试依赖并优化测试代码

- 添加spring-boot-starter-test和mockito-junit-jupiter测试依赖
- 简化AlbumServicePropertyTest中的photoIdLists生成器
- 统一WebSocket测试中的any()参数类型为Object.class
- 优化TestDataGenerators中的代码格式和UserProfile时间类型

timeline-user-service/pom.xml

@@ -133,6 +133,18 @@
             <artifactId>jqwik</artifactId>
             <scope>test</scope>
         </dependency>
+
+        <!-- Test dependencies -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-junit-jupiter</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>