pm-exec-narrative

Produces an executive-facing strategy narrative from stage-3 PRD decisions and stage-4 work items. Use whenever the user says "exec brief", "strategy narrative", "prioritization doc", "make this executive", "one-pager for leadership", "what do I tell the partners", "what's the strategy", or needs a one-page summary to share with leadership or stakeholders. Can render in Working, Team, or Executive register. Optionally produces a PowerPoint deck. Writes to the 5_Prioritization_Strategy/ folder.