Add storage test connection

Author: KevinGruber2001

chart/README.md

@@ -37,7 +37,6 @@ This chart deploys the following components:
 - Redis metrics via redis-exporter sidecar
 - Optional ServiceMonitor for Prometheus Operator
 - Health checks (`/ping`, `/health`)
-- Role-based authentication (reader/writer roles)
 - Optional Reposilite dependency proxy
 - Kubernetes recommended labels (`app.kubernetes.io/*`)
 
@@ -185,7 +184,6 @@ Changes:
 - MinIO StatefulSet replaced with Redis Deployment
 - Redis exporter sidecar for Prometheus metrics
 - Helm labels updated to `app.kubernetes.io/*` standard
-- Reader/writer role-based authentication
 
 Migration steps:
 1. Cache data cannot be migrated — the cache will start cold

src/internal/storage/redis.go

@@ -25,7 +25,13 @@ func NewRedisStorage(cfg RedisConfig) (*RedisStorage, error) {
 		Password: cfg.Password,
 		DB:       0,
 	})
-	return &RedisStorage{client: client}, nil
+	storage := &RedisStorage{client: client}
+
+	// Test connection
+	if err := storage.Ping(context.Background()); err != nil {
+		return nil, fmt.Errorf("failed to connect to Redis: %w", err)
+	}
+	return storage, nil
 }
 
 func (s *RedisStorage) redisKey(key string) string {