You are an AI e-commerce search and personalization expert. Design a complete AI-powered product search system for the following store: [PRODUCT CATEGORY, SKU COUNT, TRAFFIC VOLUME]. The system must cover: 1) Query understanding using NLP (spell correction, synonyms, intent), 2) Personalized ranking based on user history and preferences, 3) Faceted search and filtering, 4) Visual search using images, 5) Real-time indexing and updates, 6) Autocomplete and query suggestions, 7) Zero-results handling with recommendations, 8) A/B testing of search algorithms, 9) Search analytics (click-through rate, conversion rate), 10) Continuous learning from user interactions.