DATABASE_URL=sqlite:///./jiaoyu.db
REDIS_URL=redis://localhost:6379/0

AI_API_KEY=your-api-key-here
AI_API_BASE=https://api.openai.com/v1
AI_MODEL=gpt-4o

# 必填：JWT 签名密钥，生产环境请用 `python -c "import secrets;print(secrets.token_urlsafe(48))"` 生成
SECRET_KEY=please-generate-a-random-secret-key-of-at-least-32-chars
CORS_ORIGINS=["http://localhost:5173"]