Please add `pot_account_id` to the structure returned by the `/pots` endpoint

The /pots endpoint exposes a pot_id as id (e.g,. pot_xxxxx), and current_account_id, which is the account in which the pot resides. But you can't use this id in the /transactions endpoint, to get (for instance) the transactions for the interest earned.

However, if you can find a transaction to the main account to or from that pot, the metadata of that transaction will have both a pot_id and a pot_account_id, the latter of which looks like a normal account number (e.g,. acc_xxxxx). This value can be put into the /transactions field to get transactions on the pot (including the interest transactions).

Please add the pot_account_id to the structure returned by the /pots endpoint, so that users of the API can reliably programmatically get all the transactions for an account, including interest from savings pots.

Start by locating the documentation for the /pots endpoint and its returned structure, then compare it with the pot metadata described for /transactions. Done means the response documents pot_account_id and explains that it can be used to retrieve transactions for the pot, including interest transactions.