feat: add gameInfo export with structured game instructions

- Export gameInfo object with complete game documentation
- Includes controls (navigation, game)
- Includes rules (movement, game flow, maze elements)
- Includes scoring (formula, penalties, size multiplier, examples)
- Includes game-over conditions
- Includes maze generation details
- Includes tracked metrics
- Structured for easy platform rendering
- Fully typed with GameInfo type

src/index.ts

@@ -1,3 +1,5 @@
 export * from './types';
 export * from './useGame';
 export * from './useGameStatus';
+export { gameInfo } from './gameInfo';
+export type { GameInfo } from './gameInfo';