Review ACTIVITY-WP-0029 against info-tech-canon, policy-nexus, and
State Hub retirement: activity-core keeps schedule and ops_run;
repo-manager owns consistency; hub-core owns progress ports.
Mark WP-0026 finished. Refresh INTENT, SCOPE, and repo-boundary.
Sync AGENTS.md, CLAUDE.md, and .claude/rules from updated project_rules
templates: workplan-first session protocol, legacy terminology footnote,
and GET /workplans/ examples.