List yourself as a free agent

Adds the API key owner to a tournament's solo free-agent pool, where captains can browse and make pickup offers. The path segment is literally 'me' - the pool row is keyed to the authenticated key owner and there is no way to list anyone else.

The tournament must have free agency enabled and still be open to joins, or the request answers 400 error_registration_closed. If the tournament's game requires a linked account (for example a Riot or Battle.net connection) and yours is missing, the request answers 403 error_free_agent_account_required - link it on your profile and retry.

ONE ROW PER TOURNAMENT. If you are already listed as AVAILABLE, or have been PICKED_UP by a team, the request answers 409 error_free_agent_already_in_pool. Once your previous row is terminal (you withdrew, or an organizer removed you) this endpoint reuses it rather than creating a second, so your history stays a single row. Leaving a team's roster is what releases a PICKED_UP row back to AVAILABLE; you do not rejoin manually after a pickup.

Requires the tournaments actor free_agency capability.