Publish Helm charts to GitHub Releases and GHCR OCI.

Add workflow_dispatch and OCI push since GitHub Pages is unavailable on this plan.

Co-authored-by: Cursor <cursoragent@cursor.com>

.github/workflows/release-chart.yaml

@@ -8,9 +8,11 @@ on:
       - charts/**
       - .cr.yaml
       - .github/workflows/release-chart.yaml
+  workflow_dispatch:
 
 permissions:
   contents: write
+  packages: write
 
 jobs:
   release:
@@ -26,6 +28,9 @@ jobs:
           git config user.name "$GITHUB_ACTOR"
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
+      - name: Install Helm
+        uses: azure/setup-helm@v4
+
       - name: Run chart-releaser
         uses: helm/chart-releaser-action@v1.7.0
         with:
@@ -33,3 +38,23 @@ jobs:
           config: .cr.yaml
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Push chart to OCI registry
+        run: |
+          shopt -s nullglob
+          charts=(.cr-release-packages/*.tgz)
+          if [ ${#charts[@]} -eq 0 ]; then
+            echo "No packaged charts to push"
+            exit 0
+          fi
+          owner=$(echo "${GITHUB_REPOSITORY_OWNER}" | tr '[:upper:]' '[:lower:]')
+          for chart in "${charts[@]}"; do
+            helm push "$chart" "oci://ghcr.io/${owner}/charts"
+          done