Refactor: FSD, 컴포넌트 네이밍 및 주석 개선

src/app/index.jsx

@@ -1,20 +1,24 @@
+// 전역 컨텍스트 및 상태 관리 설정 (라우팅, 인증 등)
+
 import {
   BrowserRouter,
   Routes,
   Route,
   useLocation,
   Navigate,
 } from 'react-router-dom';
+
+import Header from '../widgets/navigation/Header';
+import Footer from '../widgets/navigation/Footer';
+
 import Home from '../pages/home';
 import TrackInfo from '../pages/info';
 import NotFound from '../pages/NotFound';
 import Search from '../pages/Search';
 import Splash from '../pages/splash';
-import Header from '../widgets/navigation/Header';
-import Footer from '../widgets/navigation/Footer';
 import Login from '../pages/login';
 import MyPage from '../pages/my';
-import UploadSection from '../components/UploadSection';
+import TrackDataUploadModal from '../features/track-management/components/TrackDataUploadModal';
 
 function App() {
   return (
@@ -40,7 +44,7 @@ function AppContent() {
         <Route path="/track" element={<TrackInfo />} />
         <Route path="/search" element={<Search />} />
         <Route path="/mypage" element={<MyPage />} />
-        <Route path="/upload" element={<UploadSection />} />
+        <Route path="/upload" element={<TrackDataUploadModal />} />
         <Route path="*" element={<NotFound />} />
       </Routes>
       {!shouldHideHeaderFooter && <Footer />}

src/features/track-management/api/userDataService.js

@@ -0,0 +1,23 @@
+// src/services/userDataService.js
+import { BASE_URL } from '../../../shared/api/api';
+import useUserStore from '../../../entities/user/model/useUserStore';
+
+export const uploadStudentExcel = async (file) => {
+  const studentId = useUserStore.getState().studentId;
+  if (!studentId) throw new Error('studentId가 존재하지 않습니다');
+
+  const formData = new FormData();
+  formData.append('file', file);
+
+  const response = await fetch(`${BASE_URL}/student-data/upload/${studentId}`, {
+    method: 'POST',
+    body: formData,
+  });
+
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => ({}));
+    throw new Error(errorData.message || '엑셀 업로드 실패');
+  }
+
+  return await response.json();
+};

src/features/track-management/api/userTrackService.js

@@ -0,0 +1,20 @@
+import { BASE_URL } from '../../../shared/api/api';
+
+export const postUserTrack = async (studentId, trackName) => {
+  const response = await fetch(
+    `${BASE_URL}/api/user-track?studentId=${encodeURIComponent(studentId)}&trackName=${encodeURIComponent(trackName)}`,
+    {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    }
+  );
+
+  if (!response.ok) {
+    const errorData = await response.json().catch(() => ({}));
+    throw new Error(errorData.message || '트랙 등록 실패');
+  }
+
+  return await response.json();
+};