Improve Mercado Público search integration and tender search UX

fix: add missing PurchaseOrder type import to api client

feat: implement Purchase Order (OC) monitoring and real-time market monitor UI

feat: Live Compra Ágil web scraper integration for real-time discovery

fix: Update analyzeTender API definition to match new multi-model parameters

feat: Final auto-sync logic, manual seed button and REW branding

fix: Dynamic API detection and robust Nginx proxy rules

fix: Align search parameters and correct health check endpoint

Initial commit: AndesOps AI Platform Demo Ready