docs: publish beta.3 visual guide and release receipts
Document ROOT planning and observed task delta for 1.11 alpha
Document Tier 2 AUTOBOT, Agent Alpha, and local DATA for alpha.2
Document alpha.3 hardening and verified release in wiki
Document Agent Y CLI channels and 1.9.0 alpha.2 release
Document 1.8.7 alpha release and security boundaries
Document Agent X, Agent Z, fixed rubric, and reviewed alpha release