NodeReconciler silently ignores evaluation errors, preventing reconcile retries

[Nesar976]

While reviewing NodeReconciler, I noticed that errors from processNodeAgainstAllRules are logged internally but not returned from the reconcile loop.

Because Reconcile() still returns ctrl.Result{}, nil, transient failures such as API conflicts, patch failures, or temporary Kubernetes errors do not trigger automatic retries/requeueing by controller-runtime.

This can leave nodes in an inconsistent taint state until another unrelated update happens.

Suggested approach:

• aggregate evaluation errors instead of swallowing them
• return retryable errors from the reconcile loop so controller-runtime can handle requeue/backoff properly