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): partial account name to search for. Super users span the whole platform and would otherwise return an unbounded list, so the search term is mandatory for them. If a super user calls this without `name`, the tool returns an error asking for one — re-call with the user's intended search term.

                                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 without name: error response — supply `name` and retry.
                                Super users with name: matching accounts platform-wide (paged at 20).