feat(auth): add more detailed logging to trace endpoint flow

Author: nathan-dovire

packages/amplify_core/lib/src/config/auth/auth_config.dart

@@ -132,7 +132,6 @@ class AuthConfig extends AmplifyPluginConfigMap {
             responseType: OAuthResponseType.code,
           )
         : null;
-
     final endpoint = userPool?.endpoint;
     if (endpoint != null) {
       safePrint(
@@ -144,7 +143,7 @@ class AuthConfig extends AmplifyPluginConfigMap {
       );
     }
 
-    return AuthOutputs(
+    final authOutputs = AuthOutputs(
       awsRegion: region,
       userPoolId: userPool?.poolId,
       userPoolClientId: userPool?.appClientId,
@@ -159,6 +158,12 @@ class AuthConfig extends AmplifyPluginConfigMap {
       mfaConfiguration: plugin?.mfaConfiguration?.toMfaEnforcement(),
       mfaMethods: plugin?.mfaTypes?.map((t) => t.toMfaMethod()).toList(),
     );
+
+    safePrint(
+      '📤 [Auth Config] Created AuthOutputs with userPoolEndpoint: ${authOutputs.userPoolEndpoint}',
+    );
+
+    return authOutputs;
   }
 
   @override