India Post Shopify Tracking App

I want to launch a public Shopify app that lets merchants who use India Post keep tabs on every parcel without leaving Shopify. The single most important feature is real-time tracking: the app must pull fresh data from India Post and surface three key pieces of information—current location, shipment status, and an estimated delivery date. Merchants should see this information in two places: • inside their Shopify admin (ideally embedded on the order detail page or a custom dashboard section) • on a dedicated app page that can be reached from the Apps menu for deeper insights, bulk look-ups, or manual tracking ID entry I need you to handle the full build-and-publish cycle: set up the India Post API integration, create a clean UI consistent with Polaris, pass Shopify’s app-store review, and provide concise setup documentation so merchants can install and start tracking in minutes. The finished deliverable is a fully approved, live listing in the Shopify App Store with code handed over via GitHub (or similar), plus a short walkthrough video or PDF for end-users.