v3: added content slugs, fixed real-time updates in client, added @mentions across the app, added new file selector and drop zone

api/lib/slugify.ts

@@ -0,0 +1,18 @@
+export const UUID_RE =
+  /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
+
+export function slugify(title: string): string {
+  const slug = title
+    .toLowerCase()
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "") // strip diacritics
+    .replace(/[^a-z0-9]+/g, "-") // non-alphanumeric → dash
+    .replace(/^-+|-+$/g, "") // trim leading/trailing dashes
+    .substring(0, 60);
+  return slug || "untitled";
+}
+
+/** Stable slug tied to the record's id — unique by construction. */
+export function makeSlug(title: string, id: string): string {
+  return `${slugify(title)}-${id.substring(0, 8)}`;
+}