Adjust frontend build script to allow aggressive caching

Backend/src/api/jrpc/services/account.ts

@@ -18,7 +18,7 @@ export default class AccountService extends Server.AccountService<SessionContext
          id: ctx.user.uid,
          username: ctx.user.username,
          name: ctx.user.name,
-         birthday: ctx.user.birthday.valueOf(),
+         birthday: ctx.user.birthday?.valueOf(),
          gender: ctx.user.gender as number as Gender,
       }
    }

Backend/src/web.ts

@@ -26,6 +26,7 @@ export default class Web {
 
    constructor(config: WebConfig) {
       this.server = express();
+      this.server.set("trust proxy", 1);
       this.port = Number(config.port);
       this.registerMiddleware();
       this.registerUserSession();