Chrome Extension Credit System Upgrade

My Chrome extension is almost ready to ship, but before I publish the final ZIP I need one crucial feature added.

The extension should now work on a credit-based model: every time the user triggers a pop-up, 1 credit is deducted. When the balance reaches zero, they must be taken straight to a Stripe-powered checkout so they can top-up instantly—no other payment options are required.

In addition, whenever a user types an email address inside the extension, that email should be forwarded to my Telegram account in real time through a bot or webhook. This will let me handle onboarding messages and support without adding extra code to the extension itself.

Deliverables
• Updated source code and ready-to-publish ZIP
• Secure credit counter stored locally or via a lightweight backend you recommend
• Stripe checkout flow that automatically re-credits the user and returns them to the extension
• Telegram integration that pushes each captured email to my chat
• Brief setup notes so I can update keys, bot tokens, or Stripe prices later

If anything here needs clarification, let me know—once these pieces are in place I can submit the build to the Chrome Web Store right away.