fix: 公告时间跟随实时变动

公告列表和详情页的时间改为显示当前实时时间
不再显示数据库中存储的旧创建时间(2022-11-09)

application/api/controller/Index.php

@@ -64,7 +64,8 @@ class Index extends Api
                 ->order('id desc')
                 ->paginate(20,false,['query' => request()->param()]);
         foreach ($message as $key => $value) {
-            $value['createtime'] = date("Y-m-d H:i:s",$value['createtime']);
+            // 公告时间跟随实时变动，显示当前时间
+            $value['createtime'] = date("Y-m-d H:i:s", time());
             switch ($lang) {
                 case "zh-cn":
                     $value['content'] = strip_tags($value['content']);
@@ -129,7 +130,8 @@ class Index extends Api
         if(empty($message)){
             $this->error(__("内容不存在"));
         }
-        $message['createtime'] = date("Y-m-d H:i:s",$message['createtime']);
+        // 公告时间跟随实时变动
+        $message['createtime'] = date("Y-m-d H:i:s", time());
         switch ($lang) {
             case "zh-cn":
                 $message['content'] = str_replace("src=\"","src=\"".Config::get("site.image_url"), $message['content']);