feat(e2e): MSW cassette layer for hermetic e2e tests #962

Job	Run time
ensure-pinned-actions	7s
dead-code	37s
js-build	2m 39s
formatting	36s
check-typings	1m 49s
e2e-hermetic	3m 5s
js-test (ubuntu-latest, 22)	2m 24s
js-smoke-discover	4s
js-test (ubuntu-latest, 20)	2m 34s
js-test (windows-latest, 20)	3m 35s
lint	32s
templates-nunjucks-js (20)	1m 57s
temporal-js (22)	1m 38s
js-api-compatibility (20)	3m 58s
otel-js (22, otel-v1)	2m 47s
js-test (windows-latest, 22)	3m 29s
JS Zod Versions (4.2.1)	1m 55s
templates-nunjucks-js (22)	1m 40s
JS Zod Versions (3.25.34)	1m 53s
temporal-js (20)	1m 56s
otel-js (20, otel-v2)	3m 3s
otel-js (20, otel-v1)	2m 52s
otel-js (22, otel-v2)	2m 50s
js-smoke-test (cloudflare-vite-hono-wrangler-dev)	1m 23s
js-smoke-test (cloudflare-worker-node-no-compat)	1m 16s
js-smoke-test (playwright-browser)	1m 26s
js-smoke-test (cloudflare-vite-hono-vite-dev-node-esm)	54s
js-smoke-test (templates-nunjucks/jest)	47s
js-smoke-test (templates-nunjucks/nextjs)	1m 20s
js-smoke-test (cloudflare-vite-hono-vite-dev)	1m 2s
js-smoke-test (otel-js/otel-v1)	51s
js-smoke-test (cloudflare-worker-browser-compat)	1m 16s
js-smoke-test (templates-nunjucks/node-esm)	56s
js-smoke-test (cloudflare-worker-node-compat)	1m 1s
js-smoke-test (cloudflare-worker-browser-no-compat)	1m 1s
js-smoke-test (templates-nunjucks/deno-node)	46s
js-smoke-test (browser-main-package)	1m 5s
checks-passed	3s
	1h 3m 7s

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