Synchronous execFileSync blocks the Node.js event loop on every request

Opus finding

Synchronous execFileSync blocks the Node.js event loop on every request

• dashboard/app/api/skills/[name]/run/route.ts:35

`execFileSync` is a blocking call inside an async route handler. Spawning `gh` and awaiting its completion (which performs network calls to api.github.com) blocks the Node event loop for hundreds of milliseconds to seconds per request, stalling all other requests on the same server process. In Next.js route handlers, asynchronous `execFile`/`spawn` with a Promise wrapper is the correct pattern.