docs: Phase 2+3 — polish guides, fix quickstart/install, expand API p… #100

Job	Run time
Website — e2e	1m 58s
Chat Agent — smoke	56s
Cockpit — representative capability smoke	50s
Cockpit — secret-gated integration	53s
Cockpit — e2e	1m 26s
MCP — build / smoke	51s
Cockpit — deploy smoke dry-run	52s
Library — lint / test / build	55s
Website — lint / build	1m 24s
Cockpit — build / test	1m 2s
Deploy → Vercel	3m 10s
	14m 17s

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