feat: implement user session management with Redis and add game token verification

packages/common/src/index.ts

@@ -1,4 +1,5 @@
 export * from './rng.js';
+export * from './auth/gameToken.js';
 export * from './time/Clock.js';
 export * from './util/BytesLike.js';
 export * from './util/convertBytesLikeToArrayBuffer.js';