loops wizard: stop pulling bearer.ts into the client bundle

Same trap the pre-existing topology import comment warned about:
importing from @/lib/api/team or @/lib/api/structure drags http.ts
→ bearer.ts (uses next/headers, server-only) into the client
bundle and Turbopack refuses to build.

Replace fetchClaws / fetchTeams / fetchOrgs with plain fetch() to
/api/team/claws, /api/teams, /api/orgs. Types are inlined where
they were only used for the shape of the JSON response.

frontend/src/components/dashboard/LoopStaffingStep.tsx

@@ -14,7 +14,17 @@ import { useEffect, useMemo, useState } from "react";
 import { Building2, User, Users } from "lucide-react";
 
 import type { Agent } from "@/lib/api/schemas";
-import { fetchOrgs, fetchTeams, type GroupSummary } from "@/lib/api/structure";
+// Do NOT import @/lib/api/structure — pulls bearer.ts (next/headers,
+// server-only) into the client bundle and breaks the production build.
+// Call /api/teams and /api/orgs with plain fetch instead.
+
+interface GroupSummary {
+  id: string;
+  name: string;
+  kind: string;
+  status: string;
+  created_at: string;
+}
 
 const mono =
   "ui-monospace, SFMono-Regular, SF Mono, Menlo, Monaco, Consolas, monospace";
@@ -50,8 +60,13 @@ export function LoopStaffingStep({
     let cancelled = false;
     (async () => {
       try {
-        const [t, o] = await Promise.all([fetchTeams(), fetchOrgs()]);
+        const [tRes, oRes] = await Promise.all([
+          fetch("/api/teams"),
+          fetch("/api/orgs"),
+        ]);
         if (cancelled) return;
+        const t = tRes.ok ? ((await tRes.json()) as GroupSummary[]) : [];
+        const o = oRes.ok ? ((await oRes.json()) as GroupSummary[]) : [];
         setTeams(t);
         setOrgs(o);
       } catch (e) {