ci: add OCI self-hosted staging verification

.github/workflows/oci-staging-verify.yml

@@ -0,0 +1,33 @@
+name: OCI Staging Verification
+
+on:
+  workflow_dispatch:
+
+concurrency:
+  group: oci-staging-verify
+  cancel-in-progress: false
+
+jobs:
+  verify:
+    if: ${{ github.event_name == 'workflow_dispatch' && github.ref == 'refs/heads/main' }}
+    runs-on: [self-hosted, linux, arm64, oci-staging-runner]
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+
+      - name: Install dependencies
+        run: npm install --no-audit --no-fund
+
+      - name: Run test suite
+        run: npm test
+
+      - name: Verify package can be packed
+        run: npm pack --dry-run