fix(storage): split S3 endpoint input and persist stopped status

Persist exited status across application, database, service, and preview stop paths, and reuse the split host/port/path input for S3 endpoints with linked validation feedback.

app/Actions/Service/StopService.php

@@ -49,6 +49,9 @@ class StopService
                 $this->stopContainersInParallel($containersToStop, $server);
             }
 
+            $applications->each->update(['status' => 'exited']);
+            $dbs->each->update(['status' => 'exited']);
+
             if ($deleteConnectedNetworks) {
                 $service->deleteConnectedNetworks();
             }