list_user_accounts

List accounts the current user has access to, with optional name filtering.

                                USE FOR: "which accounts do I have access to?", "show me my accounts", "what accounts can I manage?", "what is my account ID?", "which account am I logged into?", "what role do I have?", "show me account named X", "do you have an account called X?"

                                AUTH METHODS: JWT tokens (OAuth) | PAT tokens (prefix "pat-")

                                ARGS:
                                - name (optional for regular users, REQUIRED for super users unless `account_id` is given): partial account name to search for. Super users span the whole platform and would otherwise return an unbounded list, so a search term is mandatory for them. If a super user calls this with neither `name` nor `account_id`, the tool returns an error asking for one — re-call with the user's intended search term.
                                - account_id (optional): exact account id to look up. Use this instead of `name` when the search term is a number ("account 4368", "the 12057 account"), since account names are not ids and a numeric name search finds nothing. It satisfies the super-user search requirement on its own; supplying both narrows to accounts matching BOTH.

                                RESPONSE FORMAT (identical for JWT and PAT — the token format does not change the result):
                                Regular users: user_id, email, default_account_id, is_super_user, token_type, accounts[{account_id, name, role}]
                                Super users with neither argument: error response — supply `name` or `account_id` and retry.
                                Super users with name: matching accounts platform-wide (paged at 20).
                                Super users with account_id: the single matching account, or an empty list when no account carries that id.