feat(food): implement FoodController, FoodService, and related resources for managing food items and variants

refactor(catalog): add description and price fields to variants and update related resources

feat(migration): add commercial overrides to variants with description and price fields

test(food): add tests for FoodController and ensure correct seeding of food items and variants

database/migrations/2026_08_07_000500_add_commercial_overrides_to_variants.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('variantes', function (Blueprint $table): void {
+            $table->text('descripcion')->nullable()->after('inventory_id');
+            $table->decimal('precio', 10, 2)->nullable()->after('descripcion');
+        });
+
+        DB::table('variantes')->orderBy('id')->each(function (object $variant): void {
+            $price = DB::table('catalog_items')
+                ->where('id', $variant->catalog_item_id)
+                ->value('precio');
+
+            DB::table('variantes')->where('id', $variant->id)->update([
+                'precio' => $price,
+            ]);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('variantes', function (Blueprint $table): void {
+            $table->dropColumn(['descripcion', 'precio']);
+        });
+    }
+};