init: TEALab 2025 实验室网站项目

从百度网盘 /apps/bypy/dofile/ 下载的完整项目结构，包含：
- dofile/: Flask 后端（端口 5000）+ 静态前端（端口 6002）
- officefile/: 项目相关文档
- .gitignore: Python venv / 日志 / 缓存

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

dofile/backend/routes/auth.py

@@ -0,0 +1,87 @@
+from flask import Blueprint, request, jsonify
+from flask_login import login_user, logout_user, login_required, current_user
+import sys
+import os
+
+# 添加父目录到路径
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from models import db, User
+from werkzeug.security import check_password_hash
+
+bp = Blueprint('auth', __name__)
+
+@bp.route('/register', methods=['POST'])
+def register():
+    """用户注册"""
+    data = request.get_json()
+    
+    if not data or not data.get('username') or not data.get('email') or not data.get('password'):
+        return jsonify({'error': 'Missing required fields'}), 400
+    
+    # 检查用户名是否已存在
+    if User.query.filter_by(username=data['username']).first():
+        return jsonify({'error': 'Username already exists'}), 400
+    
+    # 检查邮箱是否已存在
+    if User.query.filter_by(email=data['email']).first():
+        return jsonify({'error': 'Email already exists'}), 400
+    
+    # 创建新用户
+    user = User(
+        username=data['username'],
+        email=data['email'],
+        is_admin=data.get('is_admin', False)
+    )
+    user.set_password(data['password'])
+    
+    db.session.add(user)
+    db.session.commit()
+    
+    return jsonify({
+        'message': 'User registered successfully',
+        'user': user.to_dict()
+    }), 201
+
+@bp.route('/login', methods=['POST'])
+def login():
+    """用户登录"""
+    data = request.get_json()
+    
+    if not data or not data.get('username') or not data.get('password'):
+        return jsonify({'error': 'Username and password required'}), 400
+    
+    user = User.query.filter_by(username=data['username']).first()
+    
+    if user and user.check_password(data['password']):
+        login_user(user, remember=data.get('remember', False))
+        return jsonify({
+            'message': 'Login successful',
+            'user': user.to_dict()
+        }), 200
+    else:
+        return jsonify({'error': 'Invalid username or password'}), 401
+
+@bp.route('/logout', methods=['POST'])
+@login_required
+def logout():
+    """用户登出"""
+    logout_user()
+    return jsonify({'message': 'Logout successful'}), 200
+
+@bp.route('/me', methods=['GET'])
+@login_required
+def get_current_user():
+    """获取当前登录用户信息"""
+    return jsonify({'user': current_user.to_dict()}), 200
+
+@bp.route('/check', methods=['GET'])
+def check_auth():
+    """检查认证状态"""
+    if current_user.is_authenticated:
+        return jsonify({
+            'authenticated': True,
+            'user': current_user.to_dict()
+        }), 200
+    else:
+        return jsonify({'authenticated': False}), 200
+