The controller had been writing confusing messages like the below on missing scale target:
```
Found too many scale targets: It must be exactly one to avoid ambiguity. Either set WatchNamespace for the webhook-based autoscaler to let it only find HRAs in the namespace, or update Repository or Organization fields in your RunnerDeployment resources to fix the ambiguity.{"scaleTargets": ""}
```
This fixes that, while improving many kinds of messages written while reconcilation, so that the error message is more actionable.
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