feat(home): 팔로잉 탭 API 상태를 추가한다

SodaLive/Sources/V2/Main/MainView.swift

@@ -163,7 +163,8 @@ struct MainView: View {
                 onTapCharacter: handleRecommendationCharacterTap,
                 onTapCommunity: handleRecommendationCommunityTap,
                 onTapBanner: handleRecommendationBannerTap,
-                onTapFollowAll: handleRecommendationFollowAllTap
+                onTapFollowAll: handleRecommendationFollowAllTap,
+                onSelectFollowingTab: handleFollowingTabSelection
             )
         case .content:
             MainPlaceholderTabView(title: MainTab.content.title)
@@ -484,6 +485,15 @@ struct MainView: View {
         performRecommendationDetailAction(action: action)
     }
 
+    private func handleFollowingTabSelection() -> Bool {
+        let trimmed = token.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty else {
+            AppState.shared.setAppStep(step: .login)
+            return false
+        }
+
+        return true
+    }
 
     private func handleRecommendationBannerTap(_ item: RecommendationBannerResponse) {
         if let eventItem = item.eventItem {