feat(ag-ui): subagent cards over AG-UI via native ACTIVITY events (F5) #1734

Job	Run time
CI scope	1m 25s
Cockpit — build all examples	2m 42s
Cockpit — secret-gated integration	4s
Website — lint / build	2m 11s
Cockpit — build / test	1m 49s
Website — e2e	2m 39s
Library — lint / test / build	3m 52s
Cockpit — e2e dispatcher	1m 14s
Cockpit — deploy smoke dry-run	1m 26s
Cockpit — representative capability smoke	1m 41s
examples/chat — e2e (1/4)	3m 13s
examples/chat — e2e (2/4)	3m 3s
examples/chat — python smoke	1m 14s
examples/ag-ui — e2e	2m 53s
examples/chat — e2e (4/4)	3m 4s
examples/chat — e2e (3/4)	2m 18s
PostHog — dashboards-as-code drift check	0s
Cockpit — e2e (cockpit-ag-ui-a2ui-angular)	1m 57s
Cockpit — e2e (cockpit-ag-ui-client-tools-angular)	2m 35s
Cockpit — e2e (cockpit-ag-ui-subagents-angular)	2m 13s
Cockpit — e2e (cockpit-ag-ui-tool-views-angular)	2m 3s
Cockpit — e2e (cockpit-ag-ui-json-render-angular)	1m 58s
Cockpit — e2e (cockpit-ag-ui-interrupts-angular)	1m 49s
Cockpit — e2e (cockpit-ag-ui-streaming-angular)	1m 49s
ag-ui demo → Vercel	-1s
examples/chat — e2e	3s
Canonical demo → Vercel	0s
Cockpit — e2e	2s
CI — required	2s
Deploy → Vercel	-1s
Production smoke	0s
	49m 17s

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