Remove HTML from meeting notification subjects

Strip HTML tags from meeting subjects using a helper function in `executive-meeting-scheduler.ts` to ensure plain text display in push notifications.

artifacts/api-server/src/lib/executive-meeting-scheduler.ts

@@ -20,6 +20,29 @@ function pad2(n: number): string {
   return String(n).padStart(2, "0");
 }
 
+/**
+ * Reduce a rich-text snippet (Tiptap HTML) to plain text safe for a
+ * push-notification body. Meeting titles are stored as rich text so the
+ * scheduler can't just shove them into the payload — iOS shows the raw
+ * `<p style="text-align:center">…</p>` markup verbatim on the lock
+ * screen otherwise.
+ */
+function stripHtmlToPlainText(input: string | null | undefined): string {
+  if (!input) return "";
+  // Drop tags, collapse whitespace, decode the handful of named
+  // entities Tiptap emits. Anything more (full HTML parser) would
+  // pull a dependency for zero benefit on a 1-line notification.
+  const noTags = input.replace(/<[^>]*>/g, " ");
+  const decoded = noTags
+    .replace(/&nbsp;/g, " ")
+    .replace(/&amp;/g, "&")
+    .replace(/&lt;/g, "<")
+    .replace(/&gt;/g, ">")
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'");
+  return decoded.replace(/\s+/g, " ").trim();
+}
+
 function dateKey(d: Date): string {
   return `${d.getFullYear()}-${pad2(d.getMonth() + 1)}-${pad2(d.getDate())}`;
 }
@@ -125,8 +148,14 @@ async function tickOnce(): Promise<void> {
 
     const titleAr = "تذكير اجتماع";
     const titleEn = "Meeting reminder";
-    const subjectAr = meeting.titleAr || meeting.titleEn || "اجتماع";
-    const subjectEn = meeting.titleEn || meeting.titleAr || "Meeting";
+    const subjectAr =
+      stripHtmlToPlainText(meeting.titleAr) ||
+      stripHtmlToPlainText(meeting.titleEn) ||
+      "اجتماع";
+    const subjectEn =
+      stripHtmlToPlainText(meeting.titleEn) ||
+      stripHtmlToPlainText(meeting.titleAr) ||
+      "Meeting";
     const bodyAr = `${subjectAr} يبدأ خلال ${deltaMin} دقيقة`;
     const bodyEn = `${subjectEn} starts in ${deltaMin} min`;