feat: support redis rate limiting

backend/providers/http/engine.go

@@ -153,10 +153,21 @@ func Provide(opts ...opt.Option) error {
 			}
 			message := strings.TrimSpace(config.RateLimit.Message)
 
+			var limiterStorage fiber.Storage
+			if config.RateLimit.Redis != nil {
+				storage, err := newRedisLimiterStorage(config.RateLimit.Redis)
+				if err != nil {
+					return nil, err
+				}
+				limiterStorage = storage
+				container.AddCloseAble(func() { _ = storage.Close() })
+			}
+
 			skipPrefixes := append([]string{"/healthz", "/readyz"}, config.RateLimit.SkipPaths...)
 			engine.Use(limiter.New(limiter.Config{
 				Max:        max,
 				Expiration: time.Duration(windowSeconds) * time.Second,
+				Storage:    limiterStorage,
 				LimitReached: func(c fiber.Ctx) error {
 					appErr := errorx.ErrRateLimitExceeded
 					if message != "" {