Performance Fix Systematically find and fix performance issues in $ARGUMENTS (or the whole app if no argument is given). Always measure first — never optimize blindly. --- Step 1 — Measure baseline before touching anything Run the production build and capture metrics before making any changes: Open the app in Chrome and capture: - Lighthouse score (Performance tab → Run audit) - React Profiler (React DevTools → Profiler → Record an interaction) - Note the components with the longest render times and highest render counts Record baseline numbers. Every fix must be measured against these. --- S…