feat(tenant): add main carousel images functionality with migration, model, and tests

database/migrations/2026_07_23_000100_create_tenant_main_carousel_images_table.php

@@ -0,0 +1,31 @@
+<?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::create('tenant_main_carousel_images', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('tenant_id')
+                ->constrained('tenants')
+                ->cascadeOnDelete();
+            $table->foreignId('attachment_id')
+                ->constrained('attachments')
+                ->cascadeOnDelete();
+            $table->unsignedInteger('orden')->default(0);
+            $table->timestamps();
+
+            $table->unique(['tenant_id', 'attachment_id']);
+            $table->index(['tenant_id', 'orden']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('tenant_main_carousel_images');
+    }
+};