docs: rewrite communicate plan based on 3-agent P2P audit #710

Job	Run time
Secret Scan (gitleaks)	9s
Lint	12s
Web Tests (Unit)	21s
Typecheck	32s
Unit Tests (macOS)	2m 7s
Unit Tests (Node 22)	1m 55s
Unit Tests (Node 20)	1m 55s
Unit Tests (Node 24)	1m 57s
Server Unit Tests	46s
Web Tests (Components)	28s
Server DB Integration Tests	38s
Repo Provider Integration Tests	21s
E2E Tests	38s
Coverage Report	2m 24s
Docker Build & Push	51s
Publish to npm	2m 47s
	18m 1s

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