feat: export/import ZIP — garantie_types + referentiel_notation (fichier complet)

backend/src/routes/referentiel.js

@@ -1071,4 +1071,13 @@ router.put('/notation/:notationId', (req, res, next) => {
 });
 
 // DELETE /api/referentiel/notation/:notationId
-rou
+router.delete('/notation/:notationId', (req, res, next) => {
+  try {
+    const existing = db.prepare('SELECT id FROM referentiel_notation WHERE id = ?').get(req.params.notationId);
+    if (!existing) throw new HttpError(404, 'Critere introuvable');
+    db.prepare('DELETE FROM referentiel_notation WHERE id = ?').run(req.params.notationId);
+    res.json({ deleted: true });
+  } catch (e) { next(e); }
+});
+
+export default router;