Update Kubernetes deployment image references to match the actual
image names pushed to the Gitea registry:
- adopt-a-street/backend -> adopt-a-street-backend
- adopt-a-street/frontend -> adopt-a-street-frontend
Also remove node affinity preference from backend deployment to allow
more flexible pod scheduling, and fix registry-secret namespace to
align with current deployment structure.
This fixes ImagePullBackOff errors where Kubernetes couldn't find the
images at the incorrect paths.
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Co-Authored-By: AI Assistant <noreply@ai-assistant.com>
William Valentin
5f1ca46695