feat(C-01)：路由/代理前缀冲突修复

SPA冲突路由改名+旧路径Navigate重定向（/api-docs→/open-api-docs、/api-detail→/open-api-detail、/article→/post、/user→/user-home）；vite代理宽前缀改精确正则白名单；nginx.conf同步同口径；新增86路由回归脚本+Playwright 3项（86/86全绿）。

tests/c01-route-regression.spec.ts

@@ -0,0 +1,32 @@
+import { test, expect } from '@playwright/test';
+
+// C-01 回归：新路由直访 + 旧链接重定向 + SPA 内部导航（对准 5174 实测端口）
+const BASE = process.env.PLAYWRIGHT_BASE_URL || 'http://127.0.0.1:5174';
+
+test('C-01 新路由直访返回 SPA（open-api/post/user-home）', async ({ page }) => {
+  for (const r of ['/open-api', '/open-api-detail/1', '/post/1', '/user-home/1', '/articles', '/search']) {
+    const resp = await page.goto(BASE + r, { waitUntil: 'domcontentloaded' });
+    expect(resp?.status(), r).toBe(200);
+    await expect(page.locator('#root')).toBeAttached();
+    const body = await page.content();
+    expect(body.includes('Django') && body.includes('Not Found'), r).toBe(false);
+  }
+});
+
+test('C-01 旧分享链接客户端重定向存活', async ({ page }) => {
+  await page.goto(BASE + '/article/1', { waitUntil: 'domcontentloaded' });
+  await expect(page).toHaveURL(/\/post\/1/, { timeout: 8000 });
+  await page.goto(BASE + '/user/1', { waitUntil: 'domcontentloaded' });
+  await expect(page).toHaveURL(/\/user-home\/1/, { timeout: 8000 });
+  await page.goto(BASE + '/api-detail/1', { waitUntil: 'domcontentloaded' });
+  await expect(page).toHaveURL(/\/open-api-detail\/1/, { timeout: 8000 });
+});
+
+test('C-01 API 代理回归（经 vite 直调后端）', async ({ request }) => {
+  const a = await request.get(BASE + '/article/articles/');
+  expect(a.status()).toBe(200);
+  const b = await request.get(BASE + '/api/apidirectory/categories/');
+  expect(b.status()).toBe(200);
+  const c = await request.get(BASE + '/search/hot-keywords/');
+  expect(c.status()).toBe(200);
+});