feat(vnc): add status controls and auto recovery #58

Job	Run time
lint + dry-run 6 scenarios	16s
uat scenario=loopback-lan	6s
uat scenario=fail-closed-pkill	7s
uat scenario=custom-domain	4s
uat scenario=lan-only	6s
uat scenario=custom-ip	7s
uat scenario=loopback-only	5s
	51s

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