Function handleRightClick

apps/frontend/src/components/ChessBoard.tsx:114–120

(squareRep: string)

    };

    const handleRightClick = (squareRep: string) => {
      if (rightClickedSquares.includes(squareRep)) {
        setRightClickedSquares((prev) => prev.filter((sq) => sq !== squareRep));
      } else {
        setRightClickedSquares((prev) => [...prev, squareRep]);
      }
    };

    const handleDrawArrow = (squareRep: string) => {
      if (arrowStart) {