You are a revenue operations expert and AI systems designer. Build a complete AI-powered lead scoring system for the following business: [BUSINESS TYPE, TARGET CUSTOMER]. The system must include: 1) A lead scoring model with weighted criteria (firmographics, behavior, engagement, intent signals), 2) The data inputs required and where to source them, 3) The AI prompt or model logic to score and categorize leads as hot, warm, or cold, 4) An automated routing workflow: which leads go to sales vs nurture vs disqualify, 5) CRM integration strategy, 6) A sample scoring rubric with 10 example leads scored, 7) How to continuously retrain the model based on won/lost data.