fix: fall back to date_created when published_at is null so every article shows a date

lib/directus.ts

@@ -79,7 +79,7 @@ export async function getArticleBySlug(slug: string): Promise<Article | null> {
     readItems('articles', {
       fields: [
         'id', 'title', 'slug', 'status', 'content', 'excerpt',
-        'featured_image', 'published_at', 'is_featured',
+        'featured_image', 'published_at', 'date_created', 'is_featured',
         'seo_title', 'seo_description',
         'category.id', 'category.name', 'category.slug',
         'tags.tags_id.id', 'tags.tags_id.name', 'tags.tags_id.slug',

lib/types.ts

@@ -26,6 +26,7 @@ export interface Article {
   excerpt: string | null
   featured_image: string | null
   published_at: string | null
+  date_created: string | null
   is_featured: boolean
   seo_title: string | null
   seo_description: string | null