feat(spec): declare previewDrafts/state on meta-read requests; record environmentId as transport-level; retire REST door casts (#9741) - #9804

feat(spec): declare previewDrafts/state on meta-read requests; record environmentId as transport-level; retire REST door casts (#9741)#9804

os-elon merged 2 commits into

mainobjectstack-ai/objectstack:mainfrom

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