add all suppress modal

backend/src/contracts/contracts.py

@@ -196,6 +196,24 @@ def get_contract_file(
     )
 
 
+@router.get(
+    '/{_id}/preview-delete',
+    response_model=list[models.DeleteDependency]
+)
+async def preview_delete(
+    _id: int,
+    session: Session = Depends(get_session),
+    user: models.User = Depends(get_current_user),
+):
+    if not service.is_allowed(session, user, _id=_id):
+        raise HTTPException(
+            status_code=403,
+            detail=messages.Messages.not_allowed('contract', 'delete')
+        )
+    result = []
+    return result
+
+
 @router.get('/{form_id}/files')
 def get_contract_files(
     form_id: int,