feat(telemetry): publish-prep — assemble-dist script + corrected exports #848

Job	Run time
Library — lint / test / build	3m 20s
Cockpit — secret-gated integration	1m 20s
Cockpit — representative capability smoke	1m 41s
Cockpit — build / test	1m 54s
Website — lint / build	1m 48s
examples/chat — aimock e2e	2m 25s
Cockpit — build all examples	5m 36s
examples/chat — python smoke	1m 36s
PostHog — dashboards-as-code drift check	1m 25s
Cockpit — deploy smoke dry-run	1m 35s
Cockpit — e2e	3m 34s
Website — e2e	2m 37s
Deploy → Vercel	0s
Production smoke	0s
	28m 51s

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