feat: add createList, deleteList, and List.rename methods

[asachs01]

Summary

Adds three new methods for managing shopping lists:

createList(name)

Creates a new shopping list. Uses PBListOperation with the new-shopping-list handler, which is the same mechanism the AnyList web app uses internally.

const anylist = new AnyList({ email, password });
await anylist.login();
const newList = await anylist.createList('My New List');
console.log(newList.name); // 'My New List'

deleteList(list)

Deletes a shopping list by removing it from its parent folder via PBListFolderOperation with the delete-folder-items handler. Automatically determines the correct parent folder.

const list = anylist.getListByName('Old List');
await anylist.deleteList(list);

List.rename(newName)

Renames an existing list via PBListOperation with the rename-list handler.

const list = anylist.getListByName('Groceries');
await list.rename('Weekly Groceries');

Other changes

• Extracts uid from the JWT access token during login() so that operation metadata includes the correct userId. This was previously undefined for all operations.

How this was discovered

Reverse-engineered from the AnyList web app (app.min.js) by extracting handler ID strings and tracing the protobuf operation patterns. All three operations were tested end-to-end against the live API (create → rename → delete).

[bobby060]

@asachs01 Just a heads up that this repo is a fork of the real anylist-js repo (I just had to remove stdout prints to make it work with mcp). I will try to merge this here shortly, but the upstream repo might benefit from it too