📝 docs(infrastructure): update infrastructure package split documentation

- add missing user module test files to documentation
- include user.routes.integration.test.ts in test file list
- add integration test utility files: integration-test-db.ts and integration-test-utils.ts

docs/stories/005.001.infrastructure-packages-split.md

@@ -397,6 +397,9 @@ Claude Sonnet 4.5 (claude-sonnet-4-5-20250929)
 - `packages/user-module/tests/unit/role.service.test.ts` - 角色服务单元测试
 - `packages/user-module/tests/integration/user.integration.test.ts` - 用户集成测试
 - `packages/user-module/tests/integration/role.integration.test.ts` - 角色集成测试
+- `packages/user-module/tests/integration/user.routes.integration.test.ts` - 用户路由API集成测试
+- `packages/user-module/tests/utils/integration-test-db.ts` - 集成测试数据库工具
+- `packages/user-module/tests/utils/integration-test-utils.ts` - 集成测试断言工具
 
 **新增文件：**
 - `packages/auth-module/package.json` - 包配置