feat(webapp): add region selector to test and replay task #4768

Job	Run time
sdk-compat / Cloudflare Workers	2m 9s
sdk-compat / Deno Runtime	1m 53s
sdk-compat / Node.js 22.12 (ubuntu-latest)	1m 57s
typecheck / typecheck	6m 10s
e2e / 🧪 CLI v3 tests (ubuntu-latest - pnpm)	1m 50s
sdk-compat / Node.js 20.20 (ubuntu-latest)	2m 21s
e2e / 🧪 CLI v3 tests (windows-latest - npm)	3m 27s
e2e / 🧪 CLI v3 tests (windows-latest - pnpm)	3m 54s
sdk-compat / Bun Runtime	2m 3s
e2e / 🧪 CLI v3 tests (ubuntu-latest - npm)	1m 49s
units / internal / 🧪 Unit Tests: Internal (5, 8)	4m 5s
units / internal / 🧪 Unit Tests: Internal (1, 8)	5m 39s
units / internal / 🧪 Unit Tests: Internal (7, 8)	5m 52s
units / internal / 🧪 Unit Tests: Internal (6, 8)	4m 53s
units / internal / 🧪 Unit Tests: Internal (8, 8)	3m 21s
units / webapp / 🧪 Unit Tests: Webapp (3, 8)	3m 4s
units / webapp / 🧪 Unit Tests: Webapp (1, 8)	6m 19s
units / packages / 🧪 Unit Tests: Packages (1, 1)	7m 43s
units / webapp / 🧪 Unit Tests: Webapp (7, 8)	5m 23s
units / internal / 🧪 Unit Tests: Internal (3, 8)	6m 20s
units / internal / 🧪 Unit Tests: Internal (2, 8)	10m 6s
units / webapp / 🧪 Unit Tests: Webapp (4, 8)	5m 27s
units / webapp / 🧪 Unit Tests: Webapp (5, 8)	7m 46s
units / webapp / 🧪 Unit Tests: Webapp (2, 8)	4m 2s
units / webapp / 🧪 Unit Tests: Webapp (6, 8)	3m 47s
units / webapp / 🧪 Unit Tests: Webapp (8, 8)	2m 40s
units / internal / 🧪 Unit Tests: Internal (4, 8)	5m 16s
units / packages / 📊 Merge Reports	17s
units / webapp / 📊 Merge Reports	58s
units / internal / 📊 Merge Reports	19s
	2h 0m 50s

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