fix(api): 修复创建文章500错误和更新文章数据覆盖问题

app/api/controller/Articles.php

@@ -271,27 +271,6 @@ class Articles extends BaseController
             $post_data['content_html'] = $converter->convert($post_data['content'])->getContent();
         }
 
-        // 提供字段默认值，避免数据库严格模式报错
-        $default_fields = [
-            'jump_to_btn_title' => '',
-            'jump_to_url' => '',
-            'jump_to_url_status' => 0,
-            'poster' => '',
-            'desc' => '',
-            'author_name' => '',
-            'hits' => 0,
-            'is_top' => 0,
-            'sort' => 0,
-            'files' => '',
-            'pictures' => '',
-            'tpl_name' => '',
-        ];
-        foreach ($default_fields as $field => $default) {
-            if (!isset($post_data[$field])) {
-                $post_data[$field] = $default;
-            }
-        }
-
         $model_post->save($post_data);
 
         return json_message([], 0, '更新成功');