Next.js 14 → 16 upgrade for an open-source TypeScript app: async request APIs, config changes, dependency bumps. Build and the full test suite green before and after; CI parity table in the PR description so the maintainer can review in minutes.
Next.js 14 → 16 upgrade for an open-source TypeScript app: async request APIs, config changes, dependency bumps. Build and the full test suite green before a...