fix: resolve frontend build error and order refund bug, add member price filter

frontend/portal/src/views/ExploreView.vue

@@ -105,7 +105,8 @@ const fetchContents = async (append = false) => {
     const params = {
         page: page.value,
         limit: 12,
-        sort: sort.value
+        sort: sort.value,
+        price_type: selectedPrice.value
     };
     if (selectedGenre.value !== '全部') params.genre = selectedGenre.value;
     if (keyword.value) params.keyword = keyword.value;
@@ -127,7 +128,7 @@ const loadMore = () => {
     fetchContents(true);
 };
 
-watch([selectedGenre, sort], () => {
+watch([selectedGenre, selectedPrice, sort], () => {
     page.value = 1;
     fetchContents();
 });