feat(chat): progressive per-component GenUI rendering (PR B) #808

Job	Run time
Cockpit — build / test	1m 36s
Website — lint / build	1m 44s
Cockpit — representative capability smoke	1m 19s
Website — e2e	6m 19s
Cockpit — build all examples	4m 51s
Cockpit — e2e	2m 29s
Library — lint / test / build	3m 1s
Cockpit — secret-gated integration	1m 8s
Cockpit — deploy smoke dry-run	1m 0s
examples/chat — python smoke	1m 25s
Deploy → Vercel	0s
Production smoke	0s
	24m 52s

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