修改架构，移动端优先。

save

server/routes/articles.js

@@ -0,0 +1,19 @@
+import { Router } from 'express'
+import { authRequired } from '../middleware.js'
+import { listArticles, getArticle } from '../articles.js'
+
+const router = Router()
+
+router.use(authRequired)
+
+router.get('/articles', (_req, res) => {
+  res.json({ articles: listArticles() })
+})
+
+router.get('/articles/:slug', (req, res) => {
+  const article = getArticle(req.params.slug)
+  if (!article) return res.status(404).json({ error: '文章不存在' })
+  res.json({ article })
+})
+
+export default router