Five sequential tasks, one commit each, all mechanical:
1. git mv the three doc files
2. add scope headers + Next: footers to the eight tour docs
(also trim README architecture stub)
3. fix incoming links to old paths
4. update CLAUDE.md table + add 3 discipline rules
5. verification gate
Spec: docs/superpowers/specs/2026-05-30-doc-structure-redesign-design.md
