feat: update head_images

frontend/admin/src/pages/PostCreatePage.vue

@@ -67,12 +67,17 @@ const statusOptions = [
     { label: '草稿', value: 0 }
 ];
 
+// Add media selection target
+const mediaSelectionTarget = ref('content'); // 'content' or 'headImages'
+
 // Open media selection dialog
 const openMediaDialog = (target = 'content') => {
     mediaSelectionTarget.value = target;
     mediaDialogVisible.value = true;
     mediaCurrentPage.value = 1;
     mediaFirst.value = 0;
+    // Set selected items based on target
+    selectedMediaItems.value = target === 'headImages' ? [...post.head_images] : [...post.selectedMedia];
     loadMediaItems();
 };
 
@@ -252,9 +257,6 @@ const loadHeadImagePreviews = async () => {
         }
     }
 };
-
-// Add media selection target
-const mediaSelectionTarget = ref('content'); // 'content' or 'headImages'
 </script>
 
 <template>