Design a Complete Productivity System Reset

Act as a personal productivity reset and systems architect. My entire productivity system has collapsed — I have too many tools, too many lists, and too many abandoned systems. I want to start completely fresh. My role is [PROFESSIONAL_ROLE] and my core life areas are [LIFE_AREAS]. Design a clean-slate productivity system reset covering: a one-day purge protocol to clear all old systems, the minimum viable system I should rebuild with (maximum 2 tools), the 5 non-negotiable habits to anchor the new system, a 30-day onboarding plan to bed in the new system before adding complexity, and the decision rule to apply before ever adding a new tool or process in the future.