ci: simplify with fresh clone each run

.gitea/workflows/build.yml

@@ -18,14 +18,10 @@ jobs:
       - name: Generate demo content + Dockerfile
         run: |
           WORK=/root/.cache/demo-frontend
-          mkdir -p $WORK
-          cd $WORK
-          if [ -d .git ]; then
-            git reset --hard origin/main
-            git clean -fd
-          else
-            git clone http://joe:${GITEA_TOKEN}@192.168.1.212:3000/joe/demo-frontend.git .
-          fi
+          rm -rf "$WORK"
+          mkdir -p "$WORK"
+          cd "$WORK"
+          git clone http://joe:${GITEA_TOKEN}@192.168.1.212:3000/joe/demo-frontend.git .
 
           SHORT_SHA=${GITHUB_SHA::8}
           cat > package.json <<EOF
@@ -75,25 +71,13 @@ jobs:
 
       - name: Update image tag in values.yaml (commit-back GitOps)
         run: |
-          set -e
-          WORK=/root/.cache/demo-frontend
-          cd $WORK
+          cd /root/.cache/demo-frontend
           SHORT=${GITHUB_SHA::8}
-          echo "Updating tag to ${SHORT}"
-          # Use sed to update image.tag in helm values.yaml
           sed -i "s/^  tag:.*/  tag: \"${SHORT}\"/" deploy/helm/values.yaml
-          echo "--- diff ---"
-          git diff deploy/helm/values.yaml || true
-          # Configure git
           git config user.email "ci@local"
           git config user.name "gitea-ci"
-          # Check if there are changes
-          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}"
+          git commit -m "ci: update image tag to ${SHORT}" || echo "nothing to commit"
           git push origin main
           echo "✓ Pushed tag ${SHORT}"
         env: