[taskboard] add agent detail pages

app/api/agents/[slug]/route.ts

@@ -0,0 +1,16 @@
+import { NextResponse } from "next/server";
+
+import { findAgentBySlug } from "@/lib/agents";
+
+export async function GET(
+  _request: Request,
+  { params }: { params: Promise<{ slug: string }> },
+) {
+  const { slug } = await params;
+  const agent = await findAgentBySlug(slug);
+  if (!agent) {
+    return NextResponse.json({ error: "agent_not_found" }, { status: 404 });
+  }
+
+  return NextResponse.json(agent);
+}