Restore generic template manual and remove host integration guide
Document Tier 2 AUTOBOT, Agent Alpha, and local DATA for alpha.2
docs: publish CLI tools and SYSTEMXP routing manual for alpha.5
Document Agent Y four-role workflow and alpha.4 release
Document Agent Y CLI channels and 1.9.0 alpha.2 release
Expand full-project and shared-workspace manual with current diagrams
Document Alpha1 release policy, migration, branch consolidation, and public support
Add efficiency, technical, stack, about, and lifecycle guides