fix: template

python_core/database/template_postgres.py

@@ -699,6 +699,13 @@ PostgreSQL 驱动 psycopg2 未安装。请安装：
         draft_content = row.get('draft_content', {})
         if isinstance(draft_content, dict):
             template_info.draft_content = draft_content
+        elif isinstance(draft_content, str):
+            # 如果是字符串，尝试解析为 JSON
+            try:
+                template_info.draft_content = json.loads(draft_content)
+            except (json.JSONDecodeError, TypeError):
+                logger.warning(f"Failed to parse draft_content JSON for template {row['id']}: {draft_content}")
+                template_info.draft_content = {}
         else:
             template_info.draft_content = {}