Update hashnode.py

Author: RainPPR

scripts/hashnode.py

@@ -238,17 +238,25 @@ def sync_posts():
                 }
             }
             """
+            
+            # 修正点：将 originalPublishDate 改为 publishedAt
+            input_data = {
+                "publicationId": pub_id,
+                "title": title,
+                "subtitle": description,
+                "contentMarkdown": body,
+                "slug": slug,
+                "tags": tags_input
+            }
+
+            # 只有当时间存在时才加入 publishedAt 字段
+            if original_publish_date:
+                input_data["publishedAt"] = original_publish_date
+
             variables = {
-                "input": {
-                    "publicationId": pub_id,
-                    "title": title,
-                    "subtitle": description,
-                    "contentMarkdown": body,
-                    "slug": slug,
-                    "originalPublishDate": original_publish_date,
-                    "tags": tags_input
-                }
+                "input": input_data
             }
+            
             try:
                 run_query(publish_mutation, variables)
                 print(f"✅ 成功发布: {slug}")