Update k3s deployment to use latest tag and correct registry

- Changed kubectl deployment command to use :latest tag
- Updated k8s deployment manifests to use ghcr.io/aprsme/aprs.me:latest
- This ensures k3s always pulls the most recent image from GitHub Container Registry

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/deploy.yml

@@ -64,7 +64,7 @@ jobs:
 
       - name: Deploy to K3s
         run: |
-          kubectl set image deployment/aprs aprs=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:main-${{ github.sha }} -n aprs
+          kubectl set image deployment/aprs aprs=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest -n aprs
 
       - name: Wait for rollout
         run: |

k8s/app-deployment.yaml

@@ -17,14 +17,14 @@ spec:
     spec:
       initContainers:
         - name: db-migrate
-          image: aprs/aprs-app:latest # Placeholder, will be set by CI
+          image: ghcr.io/aprsme/aprs.me:latest
           command: ["/app/bin/migrate"]
           envFrom:
             - secretRef:
                 name: aprs-secrets
       containers:
         - name: aprs-app
-          image: aprs/aprs-app:latest # Placeholder, will be set by CI
+          image: ghcr.io/aprsme/aprs.me:latest
           ports:
             - containerPort: 4000 # Default Phoenix port
           envFrom: