chore: initialize typing-chud project with Unified API structure

- Copy vim-snake structure stripped of game-specific logic
- Remove finalScore calculation (raw data only)
- Setup example app with keybinding state management
- Empty board renders and waits for game logic

src/useGame/useGame.ts

@@ -0,0 +1,40 @@
+import { useState } from "react";
+import type { GameManager, GameOptions, KeyLogEntry } from "../types";
+import { useBoard } from "../useBoard";
+import { useCursor } from "../useCursor";
+import { useGameStatus } from "../useGameStatus";
+import { useScore } from "../useScore";
+
+export function useGame(
+  _options?: GameOptions,
+  platformHook?: unknown
+): GameManager {
+  const [keyLog, setKeyLog] = useState<KeyLogEntry[]>([]);
+
+  const boardManager = useBoard();
+  const cursorManager = useCursor();
+  const gameStatusManager = useGameStatus();
+  const scoreManager = useScore(gameStatusManager);
+
+  const gameManager: GameManager = {
+    containerRef: boardManager.containerRef,
+    renderBoard: boardManager.renderBoard,
+    gameStatus: gameStatusManager.gameStatus,
+    setGameStatus: gameStatusManager.setGameStatus,
+    startGame: gameStatusManager.startGame,
+    quitGame: gameStatusManager.quitGame,
+    cursor: cursorManager,
+    scoreManager,
+    keyLog,
+    clearKeyLog: () => setKeyLog([]),
+    getKeyLog: () => [...keyLog],
+  };
+
+  if (typeof platformHook === 'function') {
+    platformHook(gameManager);
+  }
+
+  return gameManager;
+}
+
+export type UseGameType = ReturnType<typeof useGame>;