fix: replace hardcoded French strings in agent-card with i18n t() calls

- Replace "Prochaine exéc." → t('agents.status.nextRun')
- Replace "Dernier statut" → t('agents.status.lastStatus')
- Replace "Réussi/Échec/En cours/En attente" → t('agents.status.*')
- Replace toggle title "Désactiver/Activer" → t('agents.actions.toggle*')
- Remove unused 'label' from typeConfig (already using t('agents.types.*'))
- Add nextRun/lastStatus keys to all 15 locales

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

memento-note/locales/es.json

@@ -1328,7 +1328,9 @@
       "success": "Exitoso",
       "failure": "Fallido",
       "running": "En ejecución",
-      "pending": "Pendiente"
+      "pending": "Pendiente",
+      "nextRun": "Próx. ejec.",
+      "lastStatus": "Último estado"
     },
     "actions": {
       "edit": "Editar",