Simulasikan React DevTools Profiler — analisis render log.

Setiap entry profiler: { component, duration, reason, props, state }. reason salah satu: "mount", "props", "state", "parent", "hooks".

1. profilerSummary(renders) Return object:

• totalDuration — total durasi render (sum, dibulatkan ke integer)
• byReason — object count render per reason
• slowestComponent — nama component dengan total durasi tertinggi

2. findWastedRenders(renders)

• Wasted = render dengan reason === "parent" tapi props & state sama persis dengan render sebelumnya untuk component yang sama.
• Return array nama component yang mengalami wasted render (unik, sorted alfabet).

3. recommendMemo(renders, threshold)

• Return array component yang layak dibungkus React.memo: component dengan ≥ threshold wasted render.

Hint

• profilerSummary: totalDuration = Math.round(sum(renders.map(r => r.duration))). byReason = reduce { ...acc, [r.reason]: (acc[r.reason] || 0) + 1 }. slowestComponent: group by component, sum duration, ambil max.
• findWastedRenders: iterate renders. Track previous per component. Kalau current.reason === "parent" && JSON.stringify(current.props) === prev.props && current.state sama → tambahkan ke wastedPerComponent[name]++.
• recommendMemo(renders, threshold): panggil analisis wasted, kembalikan component dengan count >= threshold. Sort alfabetis: .sort().