Python E-Commerce Alert Script

PHP, Python, Web Scraping, Amazon Web Services, SQLite, JSON, BeautifulSoup, Selenium · I need a single-entry Python solution that constantly watches product pages on Amazon, Flipkart, Croma, Reliance Digital, Vijay Sales, Samsung, Apple and any other store I decide to add next. The script must loop through a configurable list of URLs, pull the current price, stock status and every visible discount or offer (including coupons, bank/EMI and flash-sale banners), compare the results with locally stored history, and fire off Email alerts, SMS alerts and Push notifications the moment something changes.

Local storage can be lightweight—SQLite, JSON or another flat-file format is fine—as long as each check records a timestamp so the script can spot differences quickly on the next run. Please keep the core logic modular: one parser per site, shared comparison and alert utilities, all wrapped so I can invoke it via the command line or set it on a cron job. Headless scraping with Requests/BeautifulSoup should handle static pages, while Selenium or Playwright can pick up dynamic content; choose whichever combination stays stable and avoids rate limits. Proxy handling and basic CAPTCHA mitigation are expected for Amazon and Flipkart.

Give me clean configuration options (YAML/JS