feat(webapp): improve adjacent runs navigation and timeline performance #3908

Job	Run time
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 34s
typecheck / typecheck	6m 50s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	4m 21s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 47s
units / packages / 🧪 Unit Tests: Packages (1, 1)	5m 2s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 11s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	3m 31s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	5m 42s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	5m 43s
units / internal / 🧪 Unit Tests: Internal (3, 8)	3m 59s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	5m 17s
units / internal / 🧪 Unit Tests: Internal (6, 8)	3m 27s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 44s
units / internal / 🧪 Unit Tests: Internal (8, 8)	2m 7s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 25s
units / internal / 🧪 Unit Tests: Internal (4, 8)	4m 53s
units / internal / 🧪 Unit Tests: Internal (2, 8)	4m 43s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 26s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	2m 39s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 12s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 30s
units / internal / 🧪 Unit Tests: Internal (7, 8)	4m 12s
units / packages / 📊 Merge Reports	26s
units / internal / 📊 Merge Reports	25s
units / webapp / 📊 Merge Reports	43s
	1h 34m 49s

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