Sharp Books cart filler

Sharp Books is a private tool for one bookseller. It works with the Sharp Books panel (books.eleazarai.dev), which produces a morning list of books to buy. What it does, in your own browser, where you are already signed in: - Fill my basket and cart: puts the morning's picks into your AbeBooks basket and your Amazon cart, after the panel has re-checked each one is still there at the listed price. You look the baskets over and pay yourself. The extension never reaches a checkout page. - Log paid orders to FroggERP: reads your AbeBooks order history, matches each paid order to the book it was for, and types it into FroggERP's purchase form one order at a time. It refuses any order FroggERP already holds, so nothing is entered twice, and it never presses a button FroggERP did not show. - Once a day, in the evening, it logs the day's paid orders on its own. If a shop, FroggERP or the panel wants you to sign in, or shows an "I am not a robot" tick, the extension says so on the page and waits for you, then carries on by itself. It stores no passwords, tokens or card details. It reads your panel through the tab you have already signed in to, and it talks to no server other than the four sites it works with.