I need a Tampermonkey userscript that visits a specified Shopify storefront, pulls the in-stock quantity for each product variant once a day, and then sends the results to a Google Sheet via an incoming webhook. The sheet should receive one new row per product/variant with date-time, product title, variant, SKU (if available), and current inventory level. Key points you’ll build: • Tampermonkey script that can be installed in Chrome. • Daily trigger—either through the script’s internal timer or by detecting first page load of the day. • Reliable parsing of Shopify JSON embedded in the storefront to capture accurate inventory levels. • POST request to a pre-generated Google Apps Script webhook URL, formatting the payload so the sheet simply appends a new line. • Lightweight logging inside the browser console for troubleshooting.