fix(app): add missing file

src/app/projects/ai-halma/component/Piece.tsx

@@ -0,0 +1,24 @@
+import { Square } from 'src/domains/projects/ai-halma/AIHalmaEntity';
+import { cva } from 'src/styled-system/css';
+import { Flex } from 'src/styled-system/jsx';
+import { colorTheme } from 'src/theme';
+
+const pieceCVA = cva({
+  base: {
+    display: 'inline-block',
+    width: '20px',
+    height: '20px',
+    borderRadius: '50%',
+  },
+  variants: {
+    kind: colorTheme,
+  },
+  defaultVariants: {
+    kind: 0,
+  },
+});
+
+export function Piece({ enable, piece }: { enable: boolean; piece: Square }) {
+  const cursor = enable ? 'pointer' : 'not-allowed';
+  return <Flex className={pieceCVA({ kind: piece })} cursor={cursor} />;
+}

src/app/projects/ai-halma/game/components/Square.tsx

@@ -9,7 +9,7 @@ import {
   InitialPositionKey,
   MoveQueue,
   PlayerIdx,
-  Position
+  Position,
 } from 'src/domains/projects/ai-halma/AIHalmaEntity';
 import { convertMoveToMovesQueue } from 'src/domains/projects/ai-halma/AIHalmaLogic';
 import { Flex } from 'src/styled-system/jsx';