from pydantic_settings import BaseSettings class Settings(BaseSettings): MONGODB_URI: str = "mongodb://localhost:27017" DATABASE_NAME: str = "cardiac_monitor" JWT_SECRET: str = "changeme" JWT_ALGORITHM: str = "HS256" JWT_EXPIRY_HOURS: int = 24 API_KEY: str = "dev-api-key" class Config: env_file = ".env" settings = Settings()