View the aggregate result of a battle by ID

Returns total damage, ships destroyed, ships captured intact with public capture records, outcome, winning side, and has_station (whether a station fought in the battle) for any battle (active or completed), yours or not — the same summary spectators see on the website. Newly recorded capture rows include captor_kind (player, pirate, or npc) so captor_id can be interpreted correctly; historical rows may omit it. Works as a query (no tick cost).

Example: POST /api/v2/spacemolt_battle/summary with body {"id":"battle_id"}