Consolidate all Helm build and release tasks into single workflow

- Removed build-helm job from build.yml (Docker builds only now)
- Created comprehensive helm-release.yml that handles:
  - Development builds on main branch pushes (with dev suffix)
  - Release builds on version tags (v*.*.*)
  - Manual releases via workflow_dispatch
  - PR linting without publishing
- Added intelligent version detection:
  - Development versions get timestamp suffix
  - Release versions use clean semver
  - Manual dispatch can specify custom version
- Improved release process with proper Gitea API integration
- Added conditional release creation only for tagged versions
- Updated README to document the new workflow structure
- Separated concerns: build.yml for Docker, helm-release.yml for Helm

.gitea/workflows/build.yml

@@ -79,67 +79,3 @@ jobs:
           labels: ${{ steps.meta-api.outputs.labels }}
           cache-from: type=registry,ref=${{ vars.PACKAGES_REGISTRY || gitea.server_url }}/${{ gitea.repository }}/api:buildcache
           cache-to: type=registry,ref=${{ vars.PACKAGES_REGISTRY || gitea.server_url }}/${{ gitea.repository }}/api:buildcache,mode=max
-
-  build-helm:
-    runs-on: ubuntu-latest
-    needs: [build-web, build-api]
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0 # Fetch all history for proper versioning
-
-      - name: Install Helm
-        uses: azure/setup-helm@v3
-        with:
-          version: "latest"
-
-      - name: Lint Helm chart
-        run: |
-          helm lint helm/api7ee-demo-k8s/
-
-      - name: Package Helm chart
-        run: |
-          # Get version from Chart.yaml
-          CHART_VERSION=$(grep '^version:' helm/api7ee-demo-k8s/Chart.yaml | awk '{print $2}')
-          echo "Chart version: ${CHART_VERSION}"
-
-          # Create a temporary copy of the chart for packaging
-          cp -r helm/api7ee-demo-k8s /tmp/api7ee-demo-k8s-chart
-
-          # Update image registry and repository in the copy's values.yaml
-          sed -i "s|registry: gitea.server_url|registry: ${{ gitea.server_url }}|g" /tmp/api7ee-demo-k8s-chart/values.yaml
-          sed -i "s|repository: gitea.repository/|repository: ${{ gitea.repository }}/|g" /tmp/api7ee-demo-k8s-chart/values.yaml
-
-          # Package the modified chart
-          helm package /tmp/api7ee-demo-k8s-chart --version ${CHART_VERSION}
-
-          # Store chart filename for later use
-          echo "CHART_FILE=api7ee-demo-k8s-${CHART_VERSION}.tgz" >> $GITHUB_ENV
-
-      - name: Push Helm chart to Gitea Package Registry
-        run: |
-          # Upload Helm chart to Gitea package registry
-          # Format: https://{gitea-server}/api/packages/{owner}/helm/api/charts
-          curl --fail-with-body \
-            -H "Authorization: token ${{ secrets.PACKAGES_PUSH_TOKEN }}" \
-            -X POST \
-            -F "chart=@${CHART_FILE}" \
-            https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm/api/charts
-
-          echo "✅ Helm chart pushed successfully to Gitea Package Registry"
-          echo "📦 Chart: ${CHART_FILE}"
-          echo "🔗 Registry URL: https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm"
-
-      - name: Create Helm index
-        if: success()
-        run: |
-          # Create or update the Helm repository index
-          echo "📝 Helm chart repository information:"
-          echo "To add this repository:"
-          echo "  helm repo add api7ee https://${{ gitea.server_url }}/api/packages/${{ gitea.repository_owner }}/helm"
-          echo "  helm repo update"
-          echo ""
-          echo "To install the chart:"
-          echo "  helm install my-api7ee api7ee/api7ee-demo-k8s"