feat: v1 — persistent shell, model gateway, artifact improvements (#1462)

app/(chat)/api/models/route.ts

@@ -0,0 +1,20 @@
+import { getAllGatewayModels, getCapabilities, isDemo } from "@/lib/ai/models";
+
+export async function GET() {
+  const headers = {
+    "Cache-Control": "public, max-age=86400, s-maxage=86400",
+  };
+
+  const curatedCapabilities = await getCapabilities();
+
+  if (isDemo) {
+    const models = await getAllGatewayModels();
+    const capabilities = Object.fromEntries(
+      models.map((m) => [m.id, curatedCapabilities[m.id] ?? m.capabilities])
+    );
+
+    return Response.json({ capabilities, models }, { headers });
+  }
+
+  return Response.json(curatedCapabilities, { headers });
+}