feat(render+admin): stop a render job (admin, any owner)

The render-queue cancel button used the owner-scoped /cancel (WHERE user_id=…),
so an admin couldn't stop another user's job. Added:
- render-svc: POST /v1/renders/:job_id/stop (admin-gated) → store.StopJob cancels
  any in-progress job regardless of owner and frees the assigned node
- admin: render-queue button now "توقف" → /api/admin/renders/{id}/stop (with confirm)

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

src/app/api/admin/renders/[jobId]/stop/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: { jobId: string } }
+
+export async function POST(req: NextRequest, { params }: Ctx) {
+  return adminProxy(req, `/v1/renders/${params.jobId}/stop`);
+}

src/components/admin/RenderQueueTable.tsx

@@ -48,10 +48,12 @@ export function RenderQueueTable({ jobs }: { jobs: V2RenderJob[] }) {
     }
   };
 
-  const cancelJob = async (jobId: string) => {
+  const stopJob = async (jobId: string) => {
+    if (!confirm("این رندر متوقف شود؟")) return;
     setLoading((p) => ({ ...p, [jobId]: true }));
     try {
-      await apiFetch(`/api/admin/renders/${jobId}/cancel`, { method: "POST" });
+      // Admin stop — cancels any user's job (not just the caller's) and frees the node.
+      await apiFetch(`/api/admin/renders/${jobId}/stop`, { method: "POST" });
       router.refresh();
     } finally {
       setLoading((p) => ({ ...p, [jobId]: false }));
@@ -140,11 +142,11 @@ export function RenderQueueTable({ jobs }: { jobs: V2RenderJob[] }) {
                     )}
                     {canCancel && (
                       <button
-                        onClick={() => cancelJob(job.id)}
+                        onClick={() => stopJob(job.id)}
                         disabled={loading[job.id]}
                         className="rounded px-2.5 py-1 text-xs text-red-300 border border-red-500/30 hover:bg-red-500/10 disabled:opacity-40 disabled:cursor-not-allowed transition-colors"
                       >
-                        {t("actionCancel")}
+                        {t("actionStop")}
                       </button>
                     )}
                   </div>