first commit

components/draughts/board/hooks/use-draughts-winner.js

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+import { useMemo } from 'react';
+import { useDraughtsBoard } from '../DraughtsBoardContext';
+import { useDraughtsSettings } from '../../settings/DraughtsSettingsContext';
+import { Players, GameStates } from '@draughts/core';
+
+export function useDraughtsWinner() {
+  const { board } = useDraughtsBoard();
+  const { userPlayer } = useDraughtsSettings();
+
+  const winner = useMemo(() => {
+    if (board.state === GameStates.WHITE_WON) return Players.WHITE;
+    if (board.state === GameStates.BLACK_WON) return Players.BLACK;
+    return Players.NONE;
+  }, [board.state]);
+
+  return { userWon: winner === userPlayer, winner };
+}