Stuck region config blocking all deployments

Question

```
Service: NewsHub
Service ID: 65cc1182-1738-432a-ba7e-16a98b460982
Environment: production

Issue: Region 'asia-southeast1-drams3a' is stuck in multiRegionConfig and won't clear. 
Every deployment fails with: "Region asia-southeast1-drams3a is not available"

I've tried:
- Removing via API multiple times
- Setting multiRegionConfig to null
- Setting multiRegionConfig to empty object
- Replacing with valid regions

The region persists in every deployment attempt. Please manually clear this from the backend.
```