Add BaseModel with stricter attribute existence checking

app/Models/ContentReport.php

@@ -2,8 +2,6 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
-
 /**
  * Report (something objectionable spotted by a user)
  *
@@ -17,7 +15,7 @@ use Illuminate\Database\Eloquent\Model;
  * @property mixed $object - morph
  * @property-read User $author
  */
-class ContentReport extends Model
+class ContentReport extends BaseModel
 {
     protected $guarded = [];