Review Next.js App Router code before you PR for common regressions. Server/client component boundary mistakes, `fetch` cache/revalidate misuse, `params`/`searchParams` async in Next 15+, server-only secrets leaking into client bundles, hydration mismatches, and route handler pitfalls. Triggers incl
Review Next.js App Router code before you PR for common regressions. Server/client component boundary mistakes, `fetch` cache/revalidate misuse, `params`/`searchParams` async in Next 15+, server-only secrets leaking into client bundles, hydration mismatches, and route handler pitfalls. Triggers include "review this Next.js code", "check my app router page", "why is my page hydrating twice", "serve