chore: notify Chloé on release build failure

.github/workflows/release.yml

@@ -47,3 +47,24 @@ jobs:
       run: bin/release-binary.sh "$MONGO_URL" "$MONGO_USERNAME" "$MONGO_PASSWORD" "$RELEASE_TAG" "stable"
     - name: Tweet about it
       run: ./gradlew -Penv=stable -Prelease=${{ github.event.inputs.version }} jreleaserAnnounce
+
+  notify-failure:
+    name: "Notify on Failure"
+    runs-on: ubuntu-latest
+    needs: [build]
+    if: failure()
+    steps:
+      - name: Notify Chloé
+        env:
+          REPO: ${{ github.repository }}
+          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+        run: |
+          MSG="❌ Release build failed: ${REPO}"
+          MSG+=$'\nRun: '"${RUN_URL}"
+          PAYLOAD=$(jq -n --arg msg "$MSG" --arg name "GitHub CI" \
+            '{message: $msg, name: $name, deliver: true, channel: "discord", to: "user:918237603617206303"}')
+          curl -sf -X POST \
+            -H "Authorization: Bearer ${{ secrets.OPENCLAW_HOOK_TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d "$PAYLOAD" \
+            "${{ secrets.OPENCLAW_HOOK_URL }}"