feat(sdk): add the typed TypeScript client #425

Job	Run time
Static checks	23s
Protocol suite	1m 23s
macOS build and protocol suite	2m 11s
Agent runtime suite	17s
Linux E2E (Docker)	3m 5s
Web app	1m 2s
npm launcher	42s
macOS E2E (WKWebView)	-1s
	9m 2s

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