feat: agents API route proxying gateway

app/(app)/api/agents/route.ts

@@ -0,0 +1,24 @@
+import { NextRequest, NextResponse } from "next/server";
+
+const GATEWAY = process.env.BLACKROAD_GATEWAY_URL ?? "http://127.0.0.1:8787";
+
+export async function GET(_req: NextRequest) {
+  const [agentsRes, healthRes] = await Promise.all([
+    fetch(`${GATEWAY}/agents`),
+    fetch(`${GATEWAY}/health`),
+  ]);
+  const [agents, health] = await Promise.all([agentsRes.json(), healthRes.json()]);
+  return NextResponse.json({ ...agents, gateway: health });
+}
+
+export async function POST(req: NextRequest) {
+  const { agent_id, action, ...body } = await req.json() as {
+    agent_id: string; action: "wake" | "sleep" | "assign"; [k: string]: unknown;
+  };
+  const res = await fetch(`${GATEWAY}/agents/${agent_id}/${action}`, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: JSON.stringify(body),
+  });
+  return NextResponse.json(await res.json(), { status: res.status });
+}