feat(frontend): add start/stop control buttons to equipment cards

web/js/equipment.js

@@ -210,6 +210,29 @@ export function renderEquipments() {
     });
 
     actionRow.append(editBtn, deleteBtn);
+
+    if (equipment.kind === "coal_feeder" || equipment.kind === "distributor") {
+      const startBtn = document.createElement("button");
+      startBtn.className = "secondary";
+      startBtn.textContent = "Start";
+      startBtn.addEventListener("click", (e) => {
+        e.stopPropagation();
+        apiFetch(`/api/control/equipment/${equipment.id}/start`, { method: "POST" })
+          .catch(() => {});
+      });
+
+      const stopBtn = document.createElement("button");
+      stopBtn.className = "danger";
+      stopBtn.textContent = "Stop";
+      stopBtn.addEventListener("click", (e) => {
+        e.stopPropagation();
+        apiFetch(`/api/control/equipment/${equipment.id}/stop`, { method: "POST" })
+          .catch(() => {});
+      });
+
+      actionRow.append(startBtn, stopBtn);
+    }
+
     dom.equipmentList.appendChild(box);
   });
 }