I need a professional market intelligence tool for MercadoLibre Venezuela (MLV). The goal is to track competitor sales by monitoring inventory changes (Inventory Differential Tracking). Key Features: Discovery Crawler: Identify Item IDs in specific categories. Inventory Tracking: Check stock every 12 hours. Calculate sales: Sales = Stock_{Yesterday} - Stock_{Today} Restock Logic: Handle stock increases without counting them as sales. Anti-Bot: Use rotating proxies to avoid IP bans. Output: Data synced to a Google Sheet.