feat(nodes): live CPU/RAM/disk monitoring in the node list

- node-agent: internal/metrics — read CPU% (GetSystemTimes), RAM (GlobalMemoryStatusEx),
  disk used%/total (GetDiskFreeSpaceEx) via stdlib kernel32 (no external dep; windows
  build + non-windows stub). Heartbeat now reports cpu_pct/ram_available_mb/disk_used_pct/
  disk_total_gb + ae_running.
- render-svc: heartbeat persists last_disk_pct + disk_total_gb (migration 29); RenderNode
  model + node SELECT/scan carry them.
- admin: rewrite NodesTable to the real RenderNode shape (fixes a pre-existing items/V2Node
  mismatch that left the list empty) + a CPU/RAM/disk bars column + stale-heartbeat flag.
- assets-bundle ingestion: ProjectMediaBundle (jszip) auto-maps project.zip → project/scene
  image/demo/colour + music; PatchProject gains image/full_demo/shared_colors_svg.
- scan: RGBA (4-number) colours recognised + frshare single-int controls detected.

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

src/app/[locale]/admin/nodes/page.tsx

@@ -1,31 +1,15 @@
 import { getTranslations } from "next-intl/server";
 
 import { adminGet } from "@/lib/api/admin-gateway";
-import { NodesTable } from "@/components/admin/NodesTable";
+import { NodesTable, type RenderNode } from "@/components/admin/NodesTable";
 
 export const dynamic = "force-dynamic";
 export const revalidate = 0;
 
-interface V2Node {
-  id: string;
-  name: string;
-  status: "Online" | "Busy" | "Offline" | "Draining";
-  last_heartbeat: string;
-  active_job_id: string | null;
-  slots_total: number;
-  slots_used: number;
-  version: string | null;
-  tags: string[] | null;
-}
-
-interface V2NodeList {
-  items: V2Node[];
-  total: number;
-}
-
 export default async function AdminNodesPage() {
-  const data = await adminGet<V2NodeList>("/v1/nodes?pageSize=100");
-  const nodes = data?.items ?? [];
+  // render-svc returns { data: RenderNode[] }
+  const res = await adminGet<{ data: RenderNode[] }>("/v1/nodes");
+  const nodes = res?.data ?? [];
   const t = await getTranslations("auto.appAdminNodesPage");
 
   return (