feat: Introduce source type for featured groups; add category association and implement FeaturedGroupService for item sourcing

database/migrations/2026_08_04_000200_add_source_to_featured_groups_table.php

@@ -0,0 +1,31 @@
+<?php
+
+use App\Domains\Catalog\Enums\FeaturedGroupSource;
+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('featured_groups', function (Blueprint $table): void {
+            $table->enum('source_type', FeaturedGroupSource::values())
+                ->default(FeaturedGroupSource::Manual->value)
+                ->after('tenant_code');
+            $table->foreignId('category_id')
+                ->nullable()
+                ->after('source_type')
+                ->constrained('categorias')
+                ->nullOnDelete();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('featured_groups', function (Blueprint $table): void {
+            $table->dropConstrainedForeignId('category_id');
+            $table->dropColumn('source_type');
+        });
+    }
+};