harden presenter runtime lifecycle

.github/workflows/presenter-runtime-sync.yml

@@ -0,0 +1,24 @@
+name: Presenter runtime sync
+
+on:
+  pull_request:
+    paths:
+      - "assets/template*.html"
+      - "scripts/check-presenter-runtime-sync.mjs"
+      - ".github/workflows/presenter-runtime-sync.yml"
+  push:
+    branches: [main]
+    paths:
+      - "assets/template*.html"
+      - "scripts/check-presenter-runtime-sync.mjs"
+      - ".github/workflows/presenter-runtime-sync.yml"
+
+jobs:
+  presenter-runtime-sync:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - run: node scripts/check-presenter-runtime-sync.mjs