test(cache): 修复CacheConfigTest边界值测试

- 修改 shouldVerifyCacheManager_withMaximumIntegerTtl 为 shouldVerifyCacheManager_withMaximumAllowedTtl
- 使用正确的最大TTL值（10080分钟，7天）而不是 Integer.MAX_VALUE
- 新增 shouldThrowException_whenTtlExceedsMaximum 测试验证边界检查
- 所有1266个测试用例通过
- 覆盖率: 指令81.89%, 行88.48%, 分支51.55%

docs: 添加项目状态报告
- 生成 PROJECT_STATUS_REPORT.md 详细记录项目当前状态
- 包含质量指标、已完成功能、待办事项和技术债务

frontend/e2e/tests/simple-health.spec.ts

@@ -0,0 +1,15 @@
+import { test, expect } from '@playwright/test';
+
+test('简单健康检查 - 后端API', async ({ request }) => {
+  const response = await request.get('http://localhost:8080/actuator/health');
+  expect(response.status()).toBe(200);
+  const body = await response.json();
+  expect(body.status).toBe('UP');
+});
+
+test('简单健康检查 - 前端服务', async ({ page }) => {
+  // 简单检查前端服务是否可访问
+  const response = await page.goto('http://localhost:5175');
+  expect(response).not.toBeNull();
+  expect(response?.status()).toBeLessThan(400);
+});