사용자 삭제 API 메소드를 POST로 변경

변경 사항:
- axios.delete → axios.post로 변경
- POST /api/v1/nmsa/user/delete/{usrid}
- Request Body: { "mid": "xxx", "usrid": "xxx" }

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/entities/user/api/use-user-delete-mutation.ts

@@ -33,14 +33,17 @@ export const userDelete = async (params: UserDeleteParams): Promise<UserDeleteMu
   let options = {
     headers: {
       'X-User-Agent': getHeaderUserAgent(headerOptions)
-    },
-    data: {
-      mid: params.mid,
-      usrid: params.usrid
     }
   };
   try {
-    const response = await axios.delete<UserDeleteResponse>(API_URL_USER.deleteUser(params.usrid), options);
+    const response = await axios.post<UserDeleteResponse>(
+      API_URL_USER.deleteUser(params.usrid),
+      {
+        mid: params.mid,
+        usrid: params.usrid
+      },
+      options
+    );
     return { status: true, data: response.data };
   } catch (error: any) {
     return {