feat: add post page

frontend/admin/src/api/postService.js

@@ -0,0 +1,12 @@
+import httpClient from './httpClient';
+
+export const postService = {
+    getPosts({ page = 1, limit = 10 } = {}) {
+        return httpClient.get('/admin/posts', {
+            params: { page, limit }
+        });
+    },
+    getPost(id) {
+        return httpClient.get(`/admin/posts/${id}`);
+    },
+};