plan-run-v1

Execute a superseded v1 plan — one driven by phases.md rather than execution.md. Use when the user invokes /plan-run-v1, or is continuing an existing v1 plan produced by /plan-init-v1 + /plan-phase-v1; a plan carrying the Format: v2 marker belongs to /plan-run. Reads the master plan and phases.md execution tracker, identifies incomplete phases, and executes each phase in order: checks entry criteria, completes tasks, runs verification, runs /cyw, reviews the staged diff, commits and pushes to origin, then marks the phase done in docs. Updates phases.md status block throughout. Skips already-completed phases so it is safe to restart.