DAO 追加

dtos/thread.php

@@ -6,9 +6,10 @@ namespace Dto;
 class
 Thread
 {
-  public  int     $id;
-  public  string  $title;
-  public ?string  $explain;
-  public  bool    $deleted;
+  public  int       $id;
+  public  string    $title;
+  public ?string    $explain;
+  public ?DateTime  $latest;
+  public  bool      $deleted;
 }