dashboard design changes

src/app/api/dashboard/briefing/route.ts

@@ -0,0 +1,17 @@
+import type {NextRequest} from 'next/server';
+import {ok, parseQuery, simulate, wantsEmpty} from '@/lib/api/server';
+import {buildBriefing} from '@/lib/mock/briefing';
+
+export const dynamic = 'force-dynamic';
+
+const EMPTY = {summary: '', alerts: [], tasks: []};
+
+export async function GET(req: NextRequest) {
+  const q = parseQuery(req);
+  const simulated = await simulate(q);
+  if (simulated) return simulated;
+  return ok(
+    wantsEmpty(q) ? EMPTY : buildBriefing(q.storeId, q.range, q.nowMs),
+    q,
+  );
+}