feat: reversi

Resolve #12962

packages/backend/src/di-symbols.ts

@@ -79,5 +79,6 @@ export const DI = {
 	flashLikesRepository: Symbol('flashLikesRepository'),
 	userMemosRepository: Symbol('userMemosRepository'),
 	bubbleGameRecordsRepository: Symbol('bubbleGameRecordsRepository'),
+	reversiGamesRepository: Symbol('reversiGamesRepository'),
 	//#endregion
 };