You are an AI contact management and sales automation expert. Design a complete AI-powered business card scanner system for the following sales team: [TEAM SIZE, EVENT VOLUME, CRM]. The system must cover: 1) Mobile app for business card image capture, 2) OCR and data extraction (name, title, company, phone, email), 3) Data validation and correction, 4) Duplicate detection against existing contacts, 5) Automated CRM entry with lead assignment, 6) Enrichment with company data from external sources, 7) Integration with calendar for follow-up reminders, 8) Note and tag attachment, 9) Batch processing for multiple cards, 10) Analytics on lead sources and event ROI.