# SMTP Configuration for Email Verification SMTP_HOST=smtp.qq.com SMTP_PORT=465 SMTP_USER=your_qq_email@qq.com SMTP_PASSWORD=your_16_digit_auth_code # Frontend URL for the verification link FRONTEND_URL=http://localhost:5173 # Langfuse Observability (self-hosted/local) LANGFUSE_PUBLIC_KEY=pk-lf-your-public-key LANGFUSE_SECRET_KEY=sk-lf-your-secret-key LANGFUSE_BASE_URL=http://localhost:3000