feat(render+admin): delete render node

- render-svc: DELETE /v1/nodes/:node_id (store.DeleteNode + handler + route)
- admin: حذف button per node row + DELETE /api/admin/nodes/[nodeId] proxy

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/api/admin/nodes/[nodeId]/route.ts

@@ -0,0 +1,9 @@
+import { type NextRequest } from "next/server";
+import { adminProxy } from "@/app/api/admin/_adminProxy";
+
+export const runtime = "nodejs";
+interface Ctx { params: { nodeId: string } }
+
+export async function DELETE(req: NextRequest, { params }: Ctx) {
+  return adminProxy(req, `/v1/nodes/${params.nodeId}`, "DELETE");
+}

src/components/admin/NodesTable.tsx

@@ -55,6 +55,17 @@ export function NodesTable({ nodes }: { nodes: V2Node[] }) {
     }
   };
 
+  const deleteNode = async (nodeId: string) => {
+    if (!confirm("این نود برای همیشه حذف شود؟")) return;
+    setLoading((p) => ({ ...p, [nodeId]: true }));
+    try {
+      await fetch(`/api/admin/nodes/${nodeId}`, { method: "DELETE" });
+      router.refresh();
+    } finally {
+      setLoading((p) => ({ ...p, [nodeId]: false }));
+    }
+  };
+
   const addNode = async () => {
     setSaving(true); setErr(null);
     const res = await fetch("/api/admin/nodes", {
@@ -204,6 +215,13 @@ export function NodesTable({ nodes }: { nodes: V2Node[] }) {
                   >
                     {t("actionRelease")}
                   </button>
+                  <button
+                    onClick={() => deleteNode(node.id)}
+                    disabled={loading[node.id]}
+                    className="rounded px-2.5 py-1 text-xs text-red-400 border border-red-600/50 hover:bg-red-600/20 disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
+                  >
+                    حذف
+                  </button>
                 </div>
               </td>
             </tr>