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

api/services/ws-service.ts

@@ -117,7 +117,11 @@ export function broadcastPlaylistCreated(playlist: Playlist): void {
 }
 
 export function broadcastPlaylistUpdated(playlist: Playlist): void {
-  sendToPlaylistAudience(playlist, { type: "playlist_updated", playlist });
+  // Broadcast to ALL clients so non-owners can react to visibility changes
+  // (e.g. remove a now-private playlist from their feed).
+  for (const client of clients) {
+    send(client.socket, { type: "playlist_updated", playlist });
+  }
 }
 
 export function broadcastPlaylistDeleted(
@@ -158,6 +162,12 @@ export function broadcastCommentDeleted(
   }
 }
 
+export function broadcastCommentUpdated(comment: Comment): void {
+  for (const client of clients) {
+    send(client.socket, { type: "comment_updated", comment });
+  }
+}
+
 // Keepalive: ping all clients every 30s, remove non-responsive ones
 const PING_INTERVAL = 30_000;