feat: add WhaleFlow — declarative multi-agent workflow orchestration #3065

Job	Run time
npm wrapper smoke (ubuntu-latest)	4s
Version drift	20s
Lint	27s
Mobile runtime smoke	2m 43s
Test (macos-latest)	4m 7s
Test (ubuntu-latest)	4s
Test (windows-latest)	5m 43s
Documentation	-1s
	13m 27s

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