perf(webapp): add event loop utilization metric #3455

Job	Run time
e2e / 🧪 CLI v3 tests (windows-latest - npm)	4m 50s
typecheck / typecheck	5m 37s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	2m 24s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	3m 14s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 33s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 46s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	2m 31s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 0s
units / packages / 🧪 Unit Tests: Packages (1, 1)	3m 26s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	6m 37s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	2m 18s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 45s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	2m 55s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 21s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 47s
units / internal / 🧪 Unit Tests: Internal (8, 8)	1m 57s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	5m 42s
units / internal / 🧪 Unit Tests: Internal (1, 8)	6m 2s
units / internal / 🧪 Unit Tests: Internal (7, 8)	2m 32s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 50s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 18s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 53s
units / packages / 📊 Merge Reports	19s
units / internal / 📊 Merge Reports	30s
units / webapp / 📊 Merge Reports	46s
	1h 31m 53s

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