# PostgreSQL Database Connection # Format: postgresql://username:password@host:port/database?schema=public DATABASE_URL="postgresql://username:password@localhost:5432/smartes_klassenzimmer?schema=public" # JWT Secret Key (MUST be changed in production!) JWT_SECRET="your-super-secret-jwt-key-change-this-in-production" # Server Port PORT=3000 # SMTP Configuration SMTP_HOST="smtp.example.com" SMTP_PORT=587 SMTP_USER="user@example.com" SMTP_PASS="password" SMTP_FROM="noreply@smartes-klassenzimmer.de"