Show the connected ChatGPT Ads account

Reads the advertiser account the stored key belongs to: id, name, website, currency, timezone, account status and the platform's review verdict on the account. This is the same call the key was verified with when the user connected it. Use when: starting work on this platform, confirming which account you are about to change, or checking whether a failing call is an access problem rather than a data problem. Run it before any write if you are not certain which account the key points at. Do not use it to see what is running — that is chatgpt_list_campaigns. Do not use it to test a key the user pasted into chat: keys are only ever stored through the Accounts page and are never passed to a tool. Returns the account currency and timezone. Every budget and every spend figure on this platform is a decimal in that currency, and every reporting window is resolved in that timezone. If the account review status is not "approved", nothing will deliver no matter what is created — say so before building anything. Costs nothing, so run it whenever the answer would otherwise be a guess. If it fails with a reauth error the key was rotated or revoked and the user must paste a new one.