fix(security): accept overseas token subject identity

common-security/src/main/java/com/baiyue/common/security/GatewayAccessTokenSessionValidator.java

@@ -35,6 +35,9 @@ public final class GatewayAccessTokenSessionValidator implements AccessTokenSess
             throw new IllegalArgumentException("Untrusted overseas gateway authorization context");
         }
         Long userId = number(jwt.getClaims().getOrDefault("userId", jwt.getClaims().get("user_id")));
+        if (userId == null) {
+            userId = number(jwt.getSubject());
+        }
         return new AccessTokenSession(1, userId, values(request.getHeader(ROLES_HEADER)),
             values(request.getHeader(AUTHORITIES_HEADER)));
     }