feat(category): add banner functionality to categories with related resource and migration tests

database/migrations/2026_10_01_000000_add_banner_to_categorias_table.php

@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('categorias', function (Blueprint $table): void {
+            $table->foreignId('banner_id')
+                ->nullable()
+                ->constrained('attachments')
+                ->nullOnDelete();
+            $table->boolean('banner_enabled')->default(false);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('categorias', function (Blueprint $table): void {
+            $table->dropConstrainedForeignId('banner_id');
+            $table->dropColumn('banner_enabled');
+        });
+    }
+};