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/utils/wait-helper.ts

@@ -0,0 +1,94 @@
+/**
+ * 等待辅助工具
+ * 提供各种等待条件的辅助函数
+ */
+
+import { Page, Locator } from '@playwright/test';
+
+/**
+ * 等待API响应
+ */
+export async function waitForApiResponse(
+  page: Page, 
+  urlPattern: string | RegExp, 
+  timeout: number = 10000
+): Promise<any> {
+  return await page.waitForResponse(
+    response => {
+      const matches = typeof urlPattern === 'string' 
+        ? response.url().includes(urlPattern)
+        : urlPattern.test(response.url());
+      return matches && response.status() === 200;
+    },
+    { timeout }
+  );
+}
+
+/**
+ * 等待页面加载完成
+ */
+export async function waitForPageLoad(page: Page, timeout: number = 10000): Promise<void> {
+  await page.waitForLoadState('networkidle', { timeout });
+  await page.waitForLoadState('domcontentloaded', { timeout });
+}
+
+/**
+ * 等待元素可见并稳定
+ */
+export async function waitForStableElement(
+  locator: Locator, 
+  timeout: number = 5000
+): Promise<void> {
+  await locator.waitFor({ state: 'visible', timeout });
+  await locator.waitFor({ state: 'stable', timeout });
+}
+
+/**
+ * 等待指定时间
+ */
+export function sleep(ms: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, ms));
+}
+
+/**
+ * 等待条件满足
+ */
+export async function waitForCondition(
+  condition: () => Promise<boolean> | boolean,
+  timeout: number = 5000,
+  interval: number = 100
+): Promise<void> {
+  const startTime = Date.now();
+  
+  while (Date.now() - startTime < timeout) {
+    const result = await condition();
+    if (result) {
+      return;
+    }
+    await sleep(interval);
+  }
+  
+  throw new Error('等待条件超时');
+}
+
+/**
+ * 等待元素包含特定文本
+ */
+export async function waitForText(
+  locator: Locator,
+  text: string,
+  timeout: number = 5000
+): Promise<void> {
+  await locator.waitFor({ timeout });
+  
+  const startTime = Date.now();
+  while (Date.now() - startTime < timeout) {
+    const elementText = await locator.textContent();
+    if (elementText?.includes(text)) {
+      return;
+    }
+    await sleep(100);
+  }
+  
+  throw new Error(`等待文本"${text}"超时`);
+}