update: cache add raw client api

database/cache/redis.go

@@ -18,6 +18,10 @@ type _redis struct {
 	client *redis.Client
 }
 
+func (r *_redis) Client() any {
+	return r.client
+}
+
 func newRedis(ctx context.Context, client *redis.Client) *_redis {
 	r := &_redis{ctx: ctx, client: client}