feat: reversi

Resolve #12962

packages/backend/package.json

@@ -107,6 +107,7 @@
 		"cli-highlight": "2.1.11",
 		"color-convert": "2.0.1",
 		"content-disposition": "0.5.4",
+		"crc-32": "^1.2.2",
 		"date-fns": "2.30.0",
 		"deep-email-validator": "0.1.21",
 		"fastify": "4.24.3",
@@ -133,6 +134,7 @@
 		"microformats-parser": "2.0.2",
 		"mime-types": "2.1.35",
 		"misskey-js": "workspace:*",
+		"misskey-reversi": "workspace:*",
 		"ms": "3.0.0-canary.1",
 		"nanoid": "5.0.4",
 		"nested-property": "4.0.0",