refactor(data-management-service): 移除 docx4j 依赖

- 删除了 docx4j-core 依赖项
- 删除了 docx4j-export-fo 依赖项
- 更新了项目依赖配置
- 简化了构建配置文件

backend/services/data-management-service/pom.xml

@@ -60,16 +60,6 @@
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-commons</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.docx4j</groupId>
-            <artifactId>docx4j-core</artifactId>
-            <version>11.4.9</version>
-        </dependency>
-        <dependency>
-            <groupId>org.docx4j</groupId>
-            <artifactId>docx4j-export-fo</artifactId>
-            <version>11.4.9</version>
-        </dependency>
     </dependencies>
 
     <build>