feat(chat): welcome screen primitive (0.0.15) (#187) #528

Job	Run time
Cockpit — secret-gated integration	1m 7s
Cockpit — representative capability smoke	1m 12s
Cockpit — build / test	1m 41s
Website — lint / build	1m 46s
Cockpit — build all examples	4m 52s
Library — lint / test / build	2m 19s
Cockpit — e2e	1m 42s
Cockpit — deploy smoke dry-run	1m 17s
Chat Agent — smoke	1m 16s
Website — e2e	2m 16s
Deploy → Vercel	5m 42s
Production smoke	4m 21s
	29m 31s

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