fix(CI): bytt metadata-token til gcloud auth print-identity-token i smoke-test

cloudbuild.yaml

@@ -58,7 +58,7 @@ steps:
       - '--quiet'
 
   # Steg 5: Smoke test — verifiser at agenten svarer etter deploy
-  # CI6-lærdom: identity token med riktig audience, ikke access token
+  # Bruker gcloud auth print-identity-token (fungerer i Cloud Build 2nd gen)
   - name: 'gcr.io/google.com/cloudsdktool/cloud-sdk'
     id: smoke-test
     waitFor: ['deploy']
@@ -67,12 +67,11 @@ steps:
       - '-c'
       - |
         echo "=== Smoke Test ==="
-        TOKEN=$(curl -sf \
-          -H "Metadata-Flavor: Google" \
-          "http://metadata.google.internal/computeMetadata/v1/instance/service-accounts/default/identity?audience=https://${_CLOUD_RUN_URL}&format=full") \
+        TOKEN=$$(gcloud auth print-identity-token \
+          --audiences="https://${_CLOUD_RUN_URL}") \
           || { echo "❌ Kunne ikke hente identity token"; exit 1; }
 
-        RESPONSE=$(curl -sf \
+        RESPONSE=$$(curl -sf \
           -H "Authorization: Bearer $$TOKEN" \
           -H "x-goog-authenticated-user-email: accounts.google.com:ci-test@vauco.no" \
           -H "Content-Type: application/json" \