feat(c-examples): aviation foundation + c-tool-calls + c-subagents (P… #905

Job	Run time
examples/chat — aimock e2e	2m 23s
Website — lint / build	1m 57s
Website — e2e	2m 37s
Cockpit — build all examples	5m 6s
PostHog — dashboards-as-code drift check	1m 29s
Cockpit — representative capability smoke	1m 25s
Cockpit — build / test	1m 54s
Cockpit — e2e	2m 40s
Cockpit — secret-gated integration	1m 18s
Cockpit — deploy smoke dry-run	1m 33s
Library — lint / test / build	3m 19s
examples/chat — python smoke	1m 30s
Deploy → Vercel	6m 50s
Production smoke	3m 11s
	37m 12s

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