SaeidJavadi/Advanced-WhatsApp-Sender ? reverse-engineered prompt

Build me a simple Python app for sending WhatsApp messages to a big list of phone numbers.

I want it to be able to check which numbers actually have WhatsApp accounts, then send either a text message or an image to the ones that do. It should let me load numbers from an Excel file, add numbers manually, or generate a list automatically. I also need it to handle more than one account and save sessions so I do not have to log in every time.

Make the app easy to use with a clean desktop interface, and include basic logs so I can see what happened during sending or checking. If you need to look up the current docs for anything, go ahead. Please set it up so I can run it from the main file after installing the requirements, and make sure the browser automation part works reliably with Chrome and the right driver version.