添加PWA支持，更新配置文件以集成next-pwa，新增相关文件到.gitignore，优化layout和page组件以支持PWA功能，提升用户体验。

server.js

@@ -0,0 +1,45 @@
+const { createServer } = require('https');
+const { parse } = require('url');
+const next = require('next');
+const fs = require('fs');
+const path = require('path');
+
+const dev = process.env.NODE_ENV !== 'production';
+const hostname = '0.0.0.0';
+const port = 3001;
+
+const app = next({ dev });
+const handle = app.getRequestHandler();
+
+// 检查证书是否存在
+const certPath = path.join(__dirname, 'certificates', 'localhost.pem');
+const keyPath = path.join(__dirname, 'certificates', 'localhost-key.pem');
+
+if (!fs.existsSync(certPath) || !fs.existsSync(keyPath)) {
+  console.error('HTTPS 证书不存在！请先运行: node scripts/generate-cert.js');
+  process.exit(1);
+}
+
+const httpsOptions = {
+  key: fs.readFileSync(keyPath),
+  cert: fs.readFileSync(certPath),
+};
+
+app.prepare().then(() => {
+  createServer(httpsOptions, async (req, res) => {
+    try {
+      const parsedUrl = parse(req.url, true);
+      await handle(req, res, parsedUrl);
+    } catch (err) {
+      console.error('Error occurred handling', req.url, err);
+      res.statusCode = 500;
+      res.end('internal server error');
+    }
+  }).listen(port, hostname, (err) => {
+    if (err) throw err;
+    console.log(`> HTTPS Server ready on https://${hostname}:${port}`);
+    console.log('> 使用自签名证书，浏览器可能会显示安全警告');
+    console.log('> 在手机上访问时，请使用电脑的局域网 IP 地址');
+    console.log(`> 例如: https://YOUR_COMPUTER_IP:${port}`);
+  });
+});