feat(api,userbot,frontend): search peers without chats and start tracking them

frontend/src/lib/components/search/SearchResults.svelte

@@ -2,6 +2,7 @@
   import { goto } from "$app/navigation";
   import { page } from "$app/state";
   import ChatListItem from "$lib/components/ChatListItem.svelte";
+  import DiscoverResultItem from "$lib/components/search/DiscoverResultItem.svelte";
   import SearchMessageItem from "$lib/components/search/SearchMessageItem.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
@@ -13,8 +14,11 @@
   );
 
   const hasChats = $derived(search.chatHits.length > 0);
+  const hasPeers = $derived(search.peerHits.length > 0);
   const hasMessages = $derived(search.messageHits.length > 0);
-  const empty = $derived(!(search.loading || hasChats || hasMessages));
+  const empty = $derived(
+    !(search.loading || hasChats || hasPeers || hasMessages)
+  );
 
   function openChat(chatId: number) {
     search.close();
@@ -40,6 +44,13 @@
     {/each}
   {/if}
 
+  {#if hasPeers}
+    <div class="section-label">Контакты и каналы</div>
+    {#each search.peerHits as item (item.chat_id)}
+      <DiscoverResultItem {item} onclick={() => openChat(item.chat_id)} />
+    {/each}
+  {/if}
+
   {#if search.loading && !hasMessages}
     <div class="loading"><Spinner /></div>
   {:else if hasMessages}