Add structured output/output schema support for server-side tools. (#… #423

Job	Run time
build (macos-latest, Debug)	1m 37s
build (windows-latest, Release)	4m 6s
build (windows-latest, Debug)	4m 6s
build (ubuntu-latest, Debug)	3m 14s
build (ubuntu-latest, Release)	9m 37s
build (macos-latest, Release)	1m 23s
publish-coverage	0s
	24m 3s

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