Add Agent Factories Authoring Surface #3065

Job	Run time
Node.js SDK Tests (macos-latest, default)	4m 32s
Node.js SDK Tests (windows-latest, inprocess)	8m 43s
Node.js SDK Tests (macos-latest, inprocess)	4m 33s
Node.js SDK Tests (ubuntu-latest, inprocess)	4m 46s
Node.js SDK Tests (ubuntu-latest, default)	3m 44s
Node.js SDK Tests (windows-latest, default)	7m 54s
	34m 12s

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