feat(catalog): add event_id to catalog items and backfill existing records

database/migrations/2026_09_18_000700_add_event_id_to_catalog_items.php

@@ -0,0 +1,26 @@
+<?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('catalog_items', function (Blueprint $table): void {
+            $table->foreignId('event_id')
+                ->nullable()
+                ->after('tenant_code')
+                ->constrained('events')
+                ->nullOnDelete();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('catalog_items', function (Blueprint $table): void {
+            $table->dropConstrainedForeignId('event_id');
+        });
+    }
+};

database/migrations/2026_09_18_000800_backfill_catalog_item_events.php

@@ -0,0 +1,25 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Support\Facades\DB;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        DB::table('tenants')
+            ->whereIn('codigo', ['desfile_pura_tendencia', 'fiesta_futbol_infantil'])
+            ->whereNotNull('active_event_id')
+            ->get(['codigo', 'active_event_id'])
+            ->each(function (object $tenant): void {
+                DB::table('catalog_items')
+                    ->where('tenant_code', $tenant->codigo)
+                    ->update(['event_id' => $tenant->active_event_id]);
+            });
+    }
+
+    public function down(): void
+    {
+        // The previous event associations cannot be recovered after this backfill.
+    }
+};