workflows/ci: Add success/failure ntfy notifications

.github/workflows/ci.yml

@@ -105,3 +105,31 @@ jobs:
       - uses: actions/checkout@v5
       - name: Push to deploy branch
         run: git push origin HEAD:deploy --force
+  notify-success:
+    if: always() && !contains(needs.*.result, 'failure') && !contains(needs.*.result, 'cancelled')
+    needs: [build-package, build-check, build-server, build-workstation, deploy]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send ntfy success notification
+        run: |
+          curl -s \
+            -H "Title: CI succeeded" \
+            -H "Priority: low" \
+            -H "Tags: white_check_mark" \
+            -H "Actions: view, Open workflow run, ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
+            -d "Commit ${{ github.sha }} succeeded." \
+            https://ntfy.sh/splitleaf
+  notify-failure:
+    if: always() && contains(needs.*.result, 'failure')
+    needs: [build-package, build-check, build-server, build-workstation, deploy]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Send ntfy failure notification
+        run: |
+          curl -s \
+            -H "Title: CI failed" \
+            -H "Priority: default" \
+            -H "Tags: rotating_light" \
+            -H "Actions: view, Open workflow run, ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
+            -d "Commit ${{ github.sha }} failed." \
+            https://ntfy.sh/splitleaf