스케쥴러 시작/정기 기능 추가

app/views/modbus/index.html.erb

@@ -1,3 +1,5 @@
+<meta http-equiv="refresh" content="5">
+
 <% if flash[:notice] %>
   <div class="mb-4 rounded bg-green-100 px-4 py-2 text-green-800 border border-green-300">
     <%= flash[:notice] %>
@@ -15,4 +17,20 @@
   </div>
 <% end %>
 
-<%= link_to "수정", "/modbus/schedule_edit", class: "btn btn-primary" %>
+<div class="py-4">
+  <%= button_to "수정", schedule_edit_modbus_index_path, method: :get, class: "btn bg-primary" %>
+</div>
+
+<div class="flex gap-x-2">
+  <%= button_to "스케쥴러 시작", start_modbus_index_path, method: :post, class: "btn bg-accept" %>
+  <%= button_to "스케쥴러 정지", stop_modbus_index_path, method: :post, class: "btn bg-danger" %>
+</div>
+
+<div class="py-4">
+  <span class="font-semibold">스케쥴러 상태:</span>
+  <% if @modbus_running %>
+    <span class="text-accept font-bold">실행 중</span>
+  <% else %>
+    <span class="text-danger font-bold">정지됨</span>
+  <% end %>
+</div>

app/views/modbus/schedule_edit.html.erb

@@ -1,4 +1,4 @@
-<%= form_with url: "/modbus/schedule_edit_update", method: :post do %>
+<%= form_with url: schedule_edit_update_modbus_index_path, method: :post do %>
   <% @schedule.each do |s| %>
     <div class="flex justify-items-center gap-x-2 pb-2">
       <div><%= s.hour %>시</div>