feat: Add admin support chat page and service for managing user conversations.

src/services/index.ts

@@ -84,3 +84,7 @@ export type {
   FaqItem,
   FaqContent,
 } from './cms.service';
+
+// Support Chat Service
+export { supportChatService } from './support-chat.service';
+export type { SupportChat, SupportMessage, MessagesResponse } from './support-chat.service';