feat: add admin interface for viewing and managing contact messages, including a new service and sidebar navigation.

src/services/contact.service.ts

@@ -0,0 +1,41 @@
+import api, { ApiResponse } from './api';
+
+export interface ContactMessage {
+  id: string;
+  name: string;
+  email: string;
+  phone: string | null;
+  message: string;
+  isRead: boolean;
+  createdAt: string;
+}
+
+export interface ContactCounts {
+  total: number;
+  unread: number;
+}
+
+class ContactService {
+  async getAllMessages(isRead?: boolean): Promise<ContactMessage[]> {
+    const params: Record<string, string> = {};
+    if (isRead !== undefined) params.isRead = String(isRead);
+    const response = await api.get<ApiResponse<ContactMessage[]>>('/contact/admin/all', { params });
+    return response.data.data;
+  }
+
+  async getCounts(): Promise<ContactCounts> {
+    const response = await api.get<ApiResponse<ContactCounts>>('/contact/admin/counts');
+    return response.data.data;
+  }
+
+  async markAsRead(id: string): Promise<ContactMessage> {
+    const response = await api.patch<ApiResponse<ContactMessage>>(`/contact/admin/${id}/read`);
+    return response.data.data;
+  }
+
+  async deleteMessage(id: string): Promise<void> {
+    await api.delete(`/contact/admin/${id}`);
+  }
+}
+
+export const contactService = new ContactService();