feat: restructure into XFlow monorepo with Nuxt 4, Modular Onion Monolith, Android client, and Desktop CLI

docker/legacy-server/api/src/middleware/auth.js

@@ -0,0 +1,34 @@
+const jwt = require('jsonwebtoken');
+
+const JWT_SECRET = process.env.JWT_SECRET || 'your-super-secret-jwt-key';
+
+const authenticateToken = (req, res, next) => {
+  const authHeader = req.headers['authorization'];
+  const token = authHeader && authHeader.split(' ')[1]; // Bearer TOKEN
+
+  if (!token) {
+    return res.status(401).json({ error: 'Access token required' });
+  }
+
+  jwt.verify(token, JWT_SECRET, (err, user) => {
+    if (err) {
+      return res.status(403).json({ error: 'Invalid or expired token' });
+    }
+    req.user = user;
+    next();
+  });
+};
+
+const generateToken = (user) => {
+  return jwt.sign(
+    { 
+      id: user.id, 
+      email: user.email,
+      username: user.username 
+    },
+    JWT_SECRET,
+    { expiresIn: '7d' }
+  );
+};
+
+module.exports = { authenticateToken, generateToken };