feat(search): add unified global search for users/chats/messages

web/src/api/search.ts

@@ -0,0 +1,16 @@
+import { http } from "./http";
+import type { DiscoverChat, Message, UserSearchItem } from "../chat/types";
+
+export interface GlobalSearchResponse {
+  users: UserSearchItem[];
+  chats: DiscoverChat[];
+  messages: Message[];
+}
+
+export async function globalSearch(query: string): Promise<GlobalSearchResponse> {
+  const { data } = await http.get<GlobalSearchResponse>("/search", {
+    params: { query, users_limit: 10, chats_limit: 10, messages_limit: 10 }
+  });
+  return data;
+}
+