feat: Introduce server stats endpoint and caching #688

Job	Run time
check_changes	7s
build-app	1m 34s
build-control-plane	29s
build-node	0s
test-control-plane	1m 13s
build-cli	0s
build-dotnet	0s
build-go	0s
build-react	0s
build-app-image	0s
build-control-plane-image	0s
build-data-connector-image	0s
build-load-test-machine-image	0s
test-node	0s
test-cli	0s
test-dotnet	0s
test-go	0s
test-react	0s
deploy-cloud	0s
	3m 23s

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