fix: backups should be done with internal db url

fix: create default database on mongodb start with a collection

app/Models/StandalonePostgresql.php

@@ -62,9 +62,9 @@ class StandalonePostgresql extends BaseModel
     {
         return 'standalone-postgresql';
     }
-    public function getDbUrl(): string
+    public function getDbUrl(bool $useInternal = false): string
     {
-        if ($this->is_public) {
+        if ($this->is_public && !$useInternal) {
             return "postgres://{$this->postgres_user}:{$this->postgres_password}@{$this->destination->server->getIp}:{$this->public_port}/{$this->postgres_db}";
         } else {
             return "postgres://{$this->postgres_user}:{$this->postgres_password}@{$this->uuid}:5432/{$this->postgres_db}";