test(examples-chat): kill aimock-e2e flake (chunkSize + data-streamin… #863

Job	Run time
Cockpit — representative capability smoke	1m 10s
Cockpit — secret-gated integration	1m 11s
Website — lint / build	1m 42s
Cockpit — build all examples	5m 16s
examples/chat — python smoke	1m 19s
Cockpit — build / test	1m 36s
PostHog — dashboards-as-code drift check	1m 18s
Library — lint / test / build	3m 13s
examples/chat — aimock e2e	2m 16s
Cockpit — e2e	1m 52s
Website — e2e	2m 20s
Cockpit — deploy smoke dry-run	1m 18s
Deploy → Vercel	1m 40s
Production smoke	4m 52s
	31m 3s

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