perf(webapp): add event loop utilization metric #3456

Job	Run time
typecheck / typecheck	5m 47s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	5m 12s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 22s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	2m 18s
units / packages / 🧪 Unit Tests: Packages (1, 1)	3m 25s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	6m 12s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 26s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 13s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	2m 53s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	6m 56s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 36s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	5m 12s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 10s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 36s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 37s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 48s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 17s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 23s
units / internal / 🧪 Unit Tests: Internal (7, 8)	2m 34s
units / internal / 🧪 Unit Tests: Internal (6, 8)	5m 2s
units / internal / 🧪 Unit Tests: Internal (8, 8)	1m 48s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 21s
units / packages / 📊 Merge Reports	21s
units / internal / 📊 Merge Reports	19s
units / webapp / 📊 Merge Reports	40s
	1h 32m 28s

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