loops wizard: fix client-bundle break from topology import

@/lib/api/topology's apiFetch pulls in bearer.ts which imports
@clerk/nextjs/server — the whole chain gets tagged as client-side
by Next when LoopsWizard imports it, and 'server-only' breaks the
production build. Switch to plain fetch(/api/topologies) with
type-only imports (mirrors what TeamWizard does). Local pnpm build
now compiles clean; typecheck/lint already pass. This unblocks the
publish job on the topology-builder push.

frontend/src/components/dashboard/LoopsWizard.tsx

@@ -16,11 +16,10 @@ import {
   type LoopCreated,
   type LoopRepeatPolicy,
 } from "@/lib/api/loops";
-import {
+// Type-only imports — pulling the value exports from @/lib/api/topology drags
-  fetchTopologyCatalog,
+// bearer.ts + @clerk/nextjs/server into the client bundle and breaks the
-  type CatalogEntry,
+// production build. Call /api/topologies with plain fetch instead.
-  type TopologyGraph,
+import type { CatalogEntry, TopologyGraph } from "@/lib/api/topology";
-} from "@/lib/api/topology";
 
 const mono =
   "ui-monospace, SFMono-Regular, SF Mono, Menlo, Monaco, Consolas, monospace";
@@ -63,15 +62,23 @@ export function LoopsWizard({
   const [created, setCreated] = useState<LoopCreated | null>(null);
 
   useEffect(() => {
-    void (async () => {
+    let cancelled = false;
+    async function load() {
       try {
-        const c = await fetchTopologyCatalog();
+        const r = await fetch("/api/topologies");
+        if (!r.ok) return;
+        const c = (await r.json()) as CatalogEntry[];
+        if (cancelled) return;
         setCatalog(c);
         if (c.length > 0) setKind((k) => k || c[0].kind);
       } catch {
         // Catalog is optional — advanced mode still works.
       }
-    })();
+    }
+    void load();
+    return () => {
+      cancelled = true;
+    };
   }, []);
 
   const selectedEntry = useMemo(