ci: revert to simple commit-back (same as demo-frontend)

.gitea/workflows/build.yml

@@ -44,25 +44,22 @@ jobs:
 
       - name: Update image tag in values.yaml (commit-back GitOps)
         run: |
-          set -ex
+          set -e
           WORK=/root/.cache/demo-go-api
           cd $WORK
           SHORT=${GITHUB_SHA::8}
-          echo "=== Updating tag to ${SHORT} ==="
-          pwd
-          ls -la
-          cat deploy/helm/values.yaml
-          git status
-          git remote -v
-          # Update tag in values.yaml
+          echo "Updating tag to ${SHORT}"
           sed -i "s/^  tag:.*/  tag: \"${SHORT}\"/" deploy/helm/values.yaml
-          echo "--- after sed ---"
-          cat deploy/helm/values.yaml
+          echo "--- diff ---"
+          git diff deploy/helm/values.yaml || true
           git config user.email "ci@local"
           git config user.name "gitea-ci"
-          git remote set-url origin "http://joe:${GITEA_TOKEN}@192.168.1.212:3000/joe/demo-go-api.git"
+          if git diff --quiet deploy/helm/values.yaml; then
+            echo "No changes to commit"
+            exit 0
+          fi
           git add deploy/helm/values.yaml
-          git commit -m "ci: update image tag to ${SHORT}" || echo "nothing to commit"
+          git commit -m "ci: update image tag to ${SHORT}"
           git push origin main
           echo "✓ Pushed tag ${SHORT}"
         env: