fix(migrations): display_order signed for negative legacy values

database/migrations/2026_08_11_100000_create_blog_tables.php

@@ -11,7 +11,7 @@ return new class extends Migration
         Schema::create('categories', function (Blueprint $table) {
             $table->id();
             $table->string('name');
-            $table->unsignedInteger('display_order')->default(0);
+            $table->integer('display_order')->default(0);
             $table->unsignedInteger('articles_count')->default(0);
             $table->timestamps();
         });
@@ -92,7 +92,7 @@ return new class extends Migration
             $table->string('name');
             $table->string('url');
             $table->text('note')->nullable();
-            $table->unsignedInteger('display_order')->default(0);
+            $table->integer('display_order')->default(0);
             $table->boolean('visible')->default(true);
             $table->timestamps();
         });