fix p2p conversation avatars

web/src/features/messages/chat-list.ts

@@ -0,0 +1,20 @@
+export interface FriendAvatarSource {
+  user_id: string;
+  topic?: string;
+  avatar_file_id?: string;
+}
+
+/**
+ * P2P contacts are keyed by their `p2p...` topic after the first subscription,
+ * while the friends API identifies the same person with a `usr...` user ID.
+ * Keep both aliases so avatars work during both the initial and established
+ * conversation states.
+ */
+export function friendAvatarLookup(friends: FriendAvatarSource[] = []) {
+  const avatars = new Map<string, string | undefined>();
+  for (const friend of friends) {
+    if (friend.user_id) avatars.set(friend.user_id, friend.avatar_file_id);
+    if (friend.topic) avatars.set(friend.topic, friend.avatar_file_id);
+  }
+  return avatars;
+}