AuthMiddleware validates JWT tokens and protects routes.

CORSMiddleware is a middleware function that adds CORS headers to HTTP responses.

GetClaimsFromContext retrieves claims from request context.

LimiterMiddleware creates a new rate limiting middleware.

PrometheusMiddleware is a middleware for recording Prometheus metrics.

SecurityHeadersMiddleware adds security headers to the response.

RateLimitConfig holds the configuration for rate limiting.