displaying username and username contained in the jwt now

common/proto/auth.proto

@@ -35,4 +35,5 @@ message LoginResponse {
     int32 expires_in = 3;      // Expiration in seconds (86400 for 24 hours)
     string user_id = 4;        // User's UUID in string format
     string role = 5;           // User's role
+    string username = 6;
 }