Fix CI workflow: use bundled tools, add debugging

- Use skopeo and jq directly (already in nix-runner image)
- Redirect evaluate response to /dev/null
- Echo responses for debugging
- Handle case where no deployment exists

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/deploy.yaml

@@ -21,7 +21,7 @@ jobs:
 
       - name: Push to registry
         run: |
-          nix shell nixpkgs#skopeo -c skopeo copy \
+          skopeo copy \
             --dest-creds "${{ secrets.REGISTRY_USERNAME }}:${{ secrets.REGISTRY_PASSWORD }}" \
             --insecure-policy \
             docker-archive:result \
@@ -32,16 +32,26 @@ jobs:
           NOMAD_ADDR: ${{ secrets.NOMAD_ADDR }}
         run: |
           # Force re-evaluation (uuid changes on each job run)
-          curl -sS -X POST "$NOMAD_ADDR/v1/job/animaltrack/evaluate"
+          echo "Triggering evaluation at $NOMAD_ADDR"
+          curl -sS -X POST "$NOMAD_ADDR/v1/job/animaltrack/evaluate" > /dev/null
 
-          # Wait for deployment
+          # Wait for deployment to be created
           sleep 5
-          DEPLOY_ID=$(curl -sS "$NOMAD_ADDR/v1/job/animaltrack/deployments" | \
+
-            nix shell nixpkgs#jq -c jq -r '.[0].ID')
+          echo "Fetching deployments..."
+          DEPLOYMENTS=$(curl -sS "$NOMAD_ADDR/v1/job/animaltrack/deployments")
+          echo "Response: $DEPLOYMENTS"
+
+          DEPLOY_ID=$(echo "$DEPLOYMENTS" | jq -r '.[0].ID')
+          echo "Deployment ID: $DEPLOY_ID"
+
+          if [ "$DEPLOY_ID" = "null" ] || [ -z "$DEPLOY_ID" ]; then
+            echo "No deployment found, job may not have update stanza"
+            exit 0
+          fi
 
           for i in $(seq 1 30); do
-            STATUS=$(curl -sS "$NOMAD_ADDR/v1/deployment/$DEPLOY_ID" | \
+            STATUS=$(curl -sS "$NOMAD_ADDR/v1/deployment/$DEPLOY_ID" | jq -r '.Status')
-              nix shell nixpkgs#jq -c jq -r '.Status')
             echo "Deployment status: $STATUS"
             case $STATUS in
               successful) exit 0 ;;