[251105] feat: CheckOutPanel에서 DetailPanel으로 복귀 시 데이터 재로드

- CheckOutPanel Back/Cancel 버튼에서 DetailPanel에 shouldReload 신호 전달
- DetailPanel에 panelShouldReload 플래그 추가
- panelShouldReload useEffect로 데이터 초기화 및 재로딩 구현
- DetailPanel 스택 유지로 자연스러운 네비게이션 제공

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Co-Authored-By: Dev Team <noreply@dev.team>

com.twin.app.shoptime/src/views/CheckOutPanel/CheckOutPanel.jsx

@@ -409,13 +409,20 @@ export default function CheckOutPanel({ panelInfo }) {
   }, [activePopup]);
 
   const onBackClick = useCallback(() => {
-    console.log('[BuyOption][CheckOutPanel] onBackClick called - dispatching popPanel');
-    console.log('[BuyOption][CheckOutPanel] Current panels before pop:', panels?.map((p) => p.name));
+    console.log('[CheckOutPanel] onBackClick - Sending reload signal to DetailPanel');
 
-    // 확실한 popPanel 호출 - CheckOutPanel만 제거
+    // DetailPanel에 재시작 신호 전달
+    dispatch(updatePanel({
+      name: Config.panel_names.DETAIL_PANEL,
+      panelInfo: {
+        shouldReload: true,
+      }
+    }));
+
+    // CheckOutPanel 제거
     dispatch(popPanel(Config.panel_names.CHECKOUT_PANEL));
 
-    console.log('[BuyOption][CheckOutPanel] popPanel dispatched for CHECKOUT_PANEL');
+    console.log('[CheckOutPanel] popPanel dispatched for CHECKOUT_PANEL');
   }, [dispatch, panels]);
 
   const toggleOrderSideBar = useCallback(() => {
@@ -538,14 +545,21 @@ export default function CheckOutPanel({ panelInfo }) {
       }
 
       if (!orderSideBarOpen && !offerSideBarOpen) {
-        console.log('[BuyOption][CheckOutPanel] onCancelCheckoutPanel - calling popPanel for CHECKOUT_PANEL');
-        console.log('[BuyOption][CheckOutPanel] Current panels before cancel pop:', panels?.map((p) => p.name));
+        console.log('[CheckOutPanel] onCancelCheckoutPanel - Sending reload signal to DetailPanel');
 
-        // 확실한 popPanel 호출 - CheckOutPanel만 제거
+        // DetailPanel에 재시작 신호 전달
+        dispatch(updatePanel({
+          name: Config.panel_names.DETAIL_PANEL,
+          panelInfo: {
+            shouldReload: true,
+          }
+        }));
+
+        // CheckOutPanel 제거
         dispatch(popPanel(Config.panel_names.CHECKOUT_PANEL));
         e.stopPropagation();
 
-        console.log('[BuyOption][CheckOutPanel] popPanel dispatched for CHECKOUT_PANEL from cancel');
+        console.log('[CheckOutPanel] popPanel dispatched for CHECKOUT_PANEL from cancel');
       }
     },
     [orderSideBarOpen, offerSideBarOpen, dispatch, panels]

com.twin.app.shoptime/src/views/DetailPanel/DetailPanel.jsx

@@ -96,6 +96,10 @@ export default function DetailPanel({ panelInfo, isOnTop, spotlightId }) {
     () => fp.pipe(() => panelInfo, fp.get('bgVideoInfo'), fp.defaultTo(null))(),
     [panelInfo]
   );
+  const panelShouldReload = useMemo(
+    () => fp.pipe(() => panelInfo, fp.get('shouldReload'), fp.defaultTo(false))(),
+    [panelInfo]
+  );
   const productPmtSuptYn = useMemo(
     () => fp.pipe(() => productData, fp.get('pmtSuptYn'))(),
     [productData]
@@ -383,6 +387,47 @@ export default function DetailPanel({ panelInfo, isOnTop, spotlightId }) {
     };
   }, [dispatch]);
 
+  // CheckOutPanel에서 돌아올 때 DetailPanel 재시작
+  useEffect(() => {
+    if (panelShouldReload) {
+      console.log('[DetailPanel] Reloading panel data...');
+
+      // 기존 데이터 초기화
+      dispatch(clearProductDetail());
+
+      // 데이터 다시 로딩
+      const isThemeType = panelType === 'theme';
+
+      if (isThemeType && panelCurationId) {
+        dispatch(
+          getThemeCurationDetailInfo({
+            patnrId: panelPatnrId,
+            curationId: panelCurationId,
+            bgImgNo: panelBgImgNo,
+          })
+        );
+      } else if (panelPrdtId && !panelCurationId) {
+        dispatch(
+          getMainCategoryDetail({
+            patnrId: panelPatnrId,
+            prdtId: panelPrdtId,
+            liveReqFlag: panelLiveReqFlag || 'N',
+          })
+        );
+      }
+
+      // 재시작 플래그 제거
+      dispatch(
+        updatePanel({
+          name: panel_names.DETAIL_PANEL,
+          panelInfo: { shouldReload: false }
+        })
+      );
+
+      console.log('[DetailPanel] Reload complete');
+    }
+  }, [panelShouldReload, dispatch, panelType, panelPatnrId, panelCurationId, panelBgImgNo, panelPrdtId, panelLiveReqFlag]);
+
   // 최근 본 상품 트리거 예시:
   // useEffect(() => {
   //   if (panelInfo && panelInfo.patnrId && panelInfo.prdtId) {