plans: roadmap v1 cleanup — full 70-agent map (60W + 10M) with mandatory worker-prompt template

Replaces in-place edits with cleaner end-to-end document. Adds worker-prompt
template at top with mandatory 12-step .claude/plans/ read-order (sprint-4
retrospective fix). Every W{N} owns ONE .claude/specs/ path; every
M{1,2} owns ONE .claude/board/sprint-log-N/meta-*-review.md path.

70 agents total across 5 sprints, ~12.4k LOC, 7-9 calendar weeks.
Critical path (sprints 5+6+7) = 4 weeks ~7100 LOC, 36W+6M.

5 open questions for human reviewer flagged at bottom of plan.

Author: claude