docs: 完成所有文档的中文翻译并应用到项目

commands/test-coverage.md

@@ -1,27 +1,27 @@
-# Test Coverage
+# 测试覆盖率 (Test Coverage)
 
-Analyze test coverage and generate missing tests:
+分析测试覆盖率并生成缺失的测试用例：
 
-1. Run tests with coverage: npm test --coverage or pnpm test --coverage
+1. 运行带覆盖率报告的测试：npm test --coverage 或 pnpm test --coverage
 
-2. Analyze coverage report (coverage/coverage-summary.json)
+2. 分析覆盖率报告 (coverage/coverage-summary.json)
 
-3. Identify files below 80% coverage threshold
+3. 识别覆盖率低于 80% 阈值的文件
 
-4. For each under-covered file:
-   - Analyze untested code paths
-   - Generate unit tests for functions
-   - Generate integration tests for APIs
-   - Generate E2E tests for critical flows
+4. 针对每个覆盖率不足的文件：
+   - 分析未测试的代码路径
+   - 为函数生成单元测试 (Unit Tests)
+   - 为 API 生成集成测试 (Integration Tests)
+   - 为关键流程生成端到端测试 (E2E Tests)
 
-5. Verify new tests pass
+5. 验证新测试已通过
 
-6. Show before/after coverage metrics
+6. 展示覆盖率指标的前后对比
 
-7. Ensure project reaches 80%+ overall coverage
+7. 确保项目整体覆盖率达到 80% 以上
 
-Focus on:
-- Happy path scenarios
-- Error handling
-- Edge cases (null, undefined, empty)
-- Boundary conditions
+重点关注：
+- 正常路径 (Happy path) 场景
+- 错误处理 (Error handling)
+- 边缘情况 (Edge cases) (null, undefined, empty)
+- 边界条件 (Boundary conditions)