[Feat] 팔로우 기능 및 페이지 추가

app/src/@core/appRouter.tsx

@@ -30,6 +30,12 @@ const ProfileLogtimeAndProjectPage = lazy(
 );
 const ProfileEvalPage = lazy(() => import('@/Profile/pages/Eval'));
 const ProfileVersusPage = lazy(() => import('@/Profile/pages/Versus'));
+const ProfileFollowersPage = lazy(
+  () => import('@/Profile/pages/Follow/Followers'),
+);
+const ProfileFollowingPage = lazy(
+  () => import('@/Profile/pages/Follow/Following'),
+);
 const LeaderboardLevelPage = lazy(() => import('@/Leaderboard/pages/Level'));
 const LeaderboardExpIncrementPage = lazy(
   () => import('@/Leaderboard/pages/ExpIncrement'),
@@ -161,6 +167,22 @@ export const appRouter = createBrowserRouter([
                           </Suspense>
                         ),
                       },
+                      {
+                        path: ROUTES.PROFILE_FOLLOWERS,
+                        element: (
+                          <Suspense fallback={<ProfileVersusPageSkeleton />}>
+                            <ProfileFollowersPage />
+                          </Suspense>
+                        ),
+                      },
+                      {
+                        path: ROUTES.PROFILE_FOLLOWING,
+                        element: (
+                          <Suspense fallback={<ProfileVersusPageSkeleton />}>
+                            <ProfileFollowingPage />
+                          </Suspense>
+                        ),
+                      },
                     ],
                   },
                   {

app/src/@core/atoms/followErrorDialogAtom.ts

@@ -0,0 +1,3 @@
+import { atom } from 'jotai';
+
+export const followErrorDialogAtom = atom(false);

app/src/@core/components/Modal/FollowErrorDialog.tsx

@@ -0,0 +1,26 @@
+import { useSetAtom } from 'jotai';
+
+import { followErrorDialogAtom } from '@core/atoms/followErrorDialogAtom';
+
+import { AlertDialog } from '@shared/ui-kit';
+
+export const LogoutErrorDialog = () => {
+  const setIsModalOpen = useSetAtom(followErrorDialogAtom);
+
+  const handleConfirm = () => {
+    setIsModalOpen(false);
+  };
+
+  return (
+    <AlertDialog
+      isOpen
+      onClose={() => {
+        /* can't close */
+      }}
+      title="팔로우 오류"
+      description="다시 시도해주세요."
+      confirmText="확인"
+      onConfirm={handleConfirm}
+    />
+  );
+};