feat(spec): IDataEngine datasource-def contract catches up to the engine — external.credentialsRef accepted, listDatasourceDefs declared - #12949

feat(spec): IDataEngine datasource-def contract catches up to the engine — external.credentialsRef accepted, listDatasourceDefs declared#12949

os-trump merged 3 commits into

mainobjectstack-ai/objectstack:mainfrom

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