wger: treat a missing Postgres password as fatal in the import probe

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

wger/rootfs/etc/cont-init.d/89-powersync-run.sh

@@ -272,6 +272,7 @@ except Exception as error:
     message = ' '.join(str(error).split()) or type(error).__name__
     fatal_messages = (
         'password authentication failed',
+        'no password supplied',
         'does not exist',
         'no pg_hba.conf entry',
     )