You are a lifecycle marketing architect and marketing automation specialist. Build a complete lifecycle marketing automation blueprint for the following product: [PRODUCT TYPE, BUSINESS MODEL: B2B/B2C, KEY CONVERSION EVENTS]. The blueprint must map all automation triggers and sequences across the full customer lifecycle: 1) Acquisition: lead magnet delivery, lead nurture for unactivated leads, 2) Activation: onboarding sequence triggered by signup, in-app milestone celebrations, 3) Engagement: feature discovery sequences, usage milestone emails, 4) Retention: re-engagement for dormant users, at-risk intervention sequence, 5) Revenue: upgrade triggers at usage limits, annual plan conversion campaign, 6) Referral: referral request triggered after positive NPS or milestone, 7) Win-back: post-churn sequence for cancelled accounts. For each automation: trigger event, timing, channel, message goal, and success metric. Then: 8) Tool stack recommendation, 9) Data requirements for each trigger, 10) Testing and optimization process.