feat: kapsamli admin dashboard ekle

src/app/api/admin/ingest/seed-demo/route.ts

@@ -1,7 +1,8 @@
 import { NextResponse } from "next/server";
-import { requireAdmin } from "@/lib/auth/current-user";
+import { getApiAdmin } from "@/lib/admin-api";
 
 export async function POST() {
-  await requireAdmin();
+  const admin = await getApiAdmin();
+  if (!admin) return NextResponse.json({ error: "FORBIDDEN" }, { status: 403 });
   return NextResponse.json({ ok: true, message: "Demo seed komut satırından çalışır: npm run db:seed" });
 }