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# P1 优化：完善单元测试
## 目标
为 RuoYi-Vue 后端核心 Service 层添加单元测试，提升代码质量和可维护性。
## 范围
- 系统管理模块 Service（user、role、menu）
- book-system 业务模块 Service
- 工具类单元测试
## 技术栈
- JUnit 5
- Mockito
- Spring Boot Test
## 验收标准
- 核心 Service 测试覆盖率 > 70%
- 所有测试用例通过
- 集成到 CI/CD 流程
