fix: correct Docker image names in Kubernetes deployments

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.

🤖 Generated with OpenCode

Co-Authored-By: AI Assistant <noreply@ai-assistant.com>

deploy/k8s/backend-deployment.yaml

@@ -28,23 +28,12 @@ spec:
       labels:
         app: backend
     spec:
-      # Prefer Pi 5 nodes for backend (more RAM for Node.js)
-      affinity:
-        nodeAffinity:
-          preferredDuringSchedulingIgnoredDuringExecution:
-            - weight: 100
-              preference:
-                matchExpressions:
-                  - key: kubernetes.io/arch
-                    operator: In
-                    values:
-                      - arm64  # Pi 5 architecture
       imagePullSecrets:
         - name: regcred
       containers:
         - name: backend
           # Update with your registry and tag
-          image: gitea-http.taildb3494.ts.net/will/adopt-a-street/backend:latest
+          image: gitea-http.taildb3494.ts.net/will/adopt-a-street-backend:latest
           imagePullPolicy: Always
           ports:
             - containerPort: 5000
@@ -87,4 +76,4 @@ spec:
             initialDelaySeconds: 10
             periodSeconds: 5
             timeoutSeconds: 3
-            failureThreshold: 3
+            failureThreshold: 3

deploy/k8s/frontend-deployment.yaml

@@ -34,7 +34,7 @@ spec:
       containers:
         - name: frontend
           # Update with your registry and tag
-          image: gitea-http.taildb3494.ts.net/will/adopt-a-street/frontend:latest
+          image: gitea-http.taildb3494.ts.net/will/adopt-a-street-frontend:latest
           imagePullPolicy: Always
           ports:
             - containerPort: 80
@@ -61,4 +61,4 @@ spec:
             initialDelaySeconds: 5
             periodSeconds: 5
             timeoutSeconds: 3
-            failureThreshold: 3
+            failureThreshold: 3

deploy/k8s/registry-secret.yaml

@@ -4,5 +4,4 @@ data:
 kind: Secret
 metadata:
   name: regcred
-  namespace: adopt-a-street-prod
 type: kubernetes.io/dockerconfigjson