新文章+渲染鲁棒性

src/lib/posts.ts

@@ -30,6 +30,11 @@ function asArray(value: unknown): string[] {
   return [];
 }
 
+function getCategories(entry: CollectionEntry<'posts'>): string[] {
+  const data = entry.data as Record<string, unknown>;
+  return [...asArray(data.categories), ...asArray(data.category)];
+}
+
 function toDate(value: unknown): Date {
   if (value instanceof Date) return value;
   if (typeof value === 'string' || typeof value === 'number') {
@@ -84,7 +89,7 @@ export async function getAllPosts(): Promise<BlogPost[]> {
         date,
         dateText: formatDate(date),
         tags: asArray(entry.data.tags),
-        categories: asArray(entry.data.categories),
+        categories: getCategories(entry),
         summary: makeSummary(entry),
         comments: entry.data.comments !== false,
         cover: typeof entry.data.cover === 'string' ? entry.data.cover : undefined,