fix: add computed properties to computed keys whitelist

- displayProviderUrl and isTransformProvider are computed properties, not data keys
- Add them to allowedExtraCurrentComputedKeys for parity test

Author: SurviveM

tests/unit/web-ui-behavior-parity.test.mjs

@@ -635,7 +635,9 @@ test('captured bundled app skeleton only exposes expected data key drift versus
         'taskOrchestrationQueueStats',
         'taskOrchestrationDraftMetrics',
         'taskOrchestrationDraftChecklist',
-        'taskOrchestrationDraftReadiness'
+        'taskOrchestrationDraftReadiness',
+        'displayProviderUrl',
+        'isTransformProvider'
     ];
     const allowedMissingCurrentComputedKeys = [
         'hasLocalAndProxy',