add alert_time_min in api/checkin and check for waiter login

app/views/origami/home/show.html.erb

@@ -369,6 +369,7 @@
              <%= t("views.btn.back") %>
           </button>
           <button type="button" id="add_order" class="btn btn-block bg-blue waves-effect"><%= t("views.btn.add") %> <%= t("views.right_panel.detail.order") %></button>
+          <% if current_login_employee.role != "waiter" %>
           <button type="button" id="survey" class="btn btn-block bg-blue waves-effect"><%= t("views.right_panel.detail.survey") %></button>
           <% if @dining.status != "available" %> 
               <% if @status_order == 'order' && @status_sale != 'sale' %>
@@ -432,7 +433,7 @@
                     </div>
                 </div>
             </div>
-
+          <% end %>
         </div>
     </div>
 </div>