chore(website): retire stale whitepaper downloads (#205) #581

Job	Run time
Website — e2e	2m 41s
Cockpit — build all examples	5m 14s
Cockpit — representative capability smoke	1m 26s
Library — lint / test / build	3m 4s
Cockpit — secret-gated integration	1m 33s
Website — lint / build	2m 12s
Cockpit — e2e	2m 1s
Chat Agent — smoke	1m 40s
Cockpit — deploy smoke dry-run	1m 22s
Cockpit — build / test	1m 49s
Deploy → Vercel	3m 59s
Production smoke	3m 6s
	30m 7s

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