feat: add post buy count

frontend/admin/src/api/postService.js

@@ -23,4 +23,7 @@ export const postService = {
     deletePost(id) {
         return httpClient.delete(`/admin/posts/${id}`);
     },
+    sendTo(id, userId) {
+        return httpClient.post(`/admin/posts/${id}/send-to/${userId}`);
+    },
 }

frontend/admin/src/api/userService.js

@@ -10,6 +10,9 @@ export const userService = {
             }
         });
     },
+    searchUser(id) {
+        return httpClient.get(`/admin/users/${id}`);
+    },
     getUser(id) {
         return httpClient.get(`/admin/users/${id}`);
     },