- leave_game: explicit exit from the lobby/game. Before start it frees
the seat; after start it keeps the seat (token reconnect still works)
and marks the player offline, dropping the game once empty.
- Seat assignment now picks the lowest free order, so leaving a lobby
before start no longer collides order numbers on the next join.
- game_status is now self-contained: adds players roster
(order/name/connected), series_number, round_number and cards_in_round
(= trick count / max bid), so the game view no longer has to stitch the
lobby snapshot.
- Add Game.player_by_order helper.
Tests: +5 (roster/round meta, leave-before-start frees seat, leave drops
empty game, leave started game keeps seat offline, leave noop). Suite: 34.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
timandClaude Opus 4.8
b8e2d15e27