样式优化，markdown优化

backend/src/models/User.ts

@@ -3,6 +3,7 @@ import { Schema, model, Document } from 'mongoose';
 export interface IUser extends Document {
   email: string;
   passwordHash: string;
+  name?: string;
   createdAt: Date;
   updatedAt: Date;
 }
@@ -10,6 +11,7 @@ export interface IUser extends Document {
 const UserSchema = new Schema<IUser>({
   email: { type: String, required: true, unique: true, index: true },
   passwordHash: { type: String, required: true }
+  , name: { type: String }
 }, { timestamps: true });
 
 export const User = model<IUser>('User', UserSchema);

backend/src/routes/auth.ts

@@ -6,13 +6,13 @@ import { signToken } from '../middleware/auth.js';
 const router = Router();
 
 router.post('/register', async (req, res) => {
-  const { email, password } = req.body || {};
+  const { email, password, name } = req.body || {};
   if (!email || !password) return res.status(400).json({ error: 'MISSING_FIELDS' });
   const exist = await User.findOne({ email });
   if (exist) return res.status(409).json({ error: 'EMAIL_EXISTS' });
   const passwordHash = await bcrypt.hash(password, 10);
-  const user = await User.create({ email, passwordHash });
-  return res.json({ token: signToken(user.id), user: { id: user.id, email: user.email } });
+  const user = await User.create({ email, passwordHash, name });
+  return res.json({ token: signToken(user.id), user: { id: user.id, email: user.email, name: user.name } });
 });
 
 router.post('/login', async (req, res) => {
@@ -22,7 +22,7 @@ router.post('/login', async (req, res) => {
   if (!user) return res.status(401).json({ error: 'INVALID_CREDENTIALS' });
   const ok = await bcrypt.compare(password, user.passwordHash);
   if (!ok) return res.status(401).json({ error: 'INVALID_CREDENTIALS' });
-  return res.json({ token: signToken(user.id), user: { id: user.id, email: user.email } });
+  return res.json({ token: signToken(user.id), user: { id: user.id, email: user.email, name: user.name } });
 });
 
 export default router;