Audit fixes: deprecated API cleanup, configurable board size, `RESET` event payload, and improved game status handling.

1.2.1 - 2026-05-18

Added

• Configurable board size via GameOptions (new Game({ boardSize: 16 })) — GameOptions exported from public API
• getFieldByIndex and setFieldByIndex added to IBoard interface
• Payload added to RESET event — GameEventMap[RESET] now uses optional GameEventPayload (no breaking change)
• Getter board added to IGame

Fixed

• savePlayerMove internally called deprecated isFieldSelected(index + 1) — now uses isFieldSelectedByIndex(index)
• Both console.warn calls removed from savePlayerMove — PlayerMoveStatus return value is sufficient
• _updateGameStatus failed to clear win/draw state on reset — removed if (isNotRunning) guard; reset() now calls _updateGameStatus() instead of setting status manually
• EventEmit declared void return type — now generic EventEmit<T> used by IGame as EventEmit<this> for correct fluent API typing
• Deprecated methods savePlayerSelection, isFieldSelected, getBoard marked @deprecated in IGame

Changed

• Board accepts optional size parameter (defaults to 9)
• Old IBoard methods marked @deprecated