feat(hub): client-registered client-only docks via docks.register/update #461

Job	Run time
e2e	2m 15s
unit-test / lint	1m 43s
unit-test / test (windows-latest, 26)	4m 28s
unit-test / test (ubuntu-latest, 24)	1m 51s
unit-test / test (ubuntu-latest, 26)	2m 19s
unit-test / test (ubuntu-latest, 22)	2m 19s
unit-test / test (windows-latest, 22)	4m 32s
unit-test / test (windows-latest, 24)	4m 41s
	24m 8s

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