Mounts a dev-only client component that syncs the react-grab debug
toolbar's pinned edge / collapsed state across viewport changes (so
the toolbar doesn't drift off-screen when resizing or rotating).
Render is gated by NODE_ENV === 'development' in src/app/layout.tsx;
production builds tree-shake the import out via process.env replacement.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>