samrathreddy/mail-tracker ? reverse-engineered prompt

Build me a self hosted email open tracker for Gmail that feels like a privacy first Mailtrack alternative.

I want a Cloudflare Worker backend and a Chrome extension that automatically adds a tiny invisible tracking pixel to emails I send, then shows me when a message has been opened with simple read style indicators in Gmail. It should ignore bot opens, avoid counting my own views, and keep all the tracking data on my Cloudflare account. I also want a small dashboard where I can see open events like time, country, device, and IP, plus basic stats for each email.

If possible, add simple real time alerts through Chrome notifications, and make Slack or Discord alerts easy to turn on too. Keep the setup simple, with a password protected dashboard and clear steps for deploying to Cloudflare and loading the extension in Chrome. If you need to, look up the current Cloudflare and Chrome extension docs online while building it.