feat(events): associate purchases and integrations with events

tests/Feature/Migrations/AssignArrufoEventToPymeRuralClientTest.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Tests\Feature\Migrations;
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Tests\TestCase;
+
+class AssignArrufoEventToPymeRuralClientTest extends TestCase
+{
+    public function test_it_assigns_only_the_arrufo_event_to_pyme_rural(): void
+    {
+        Schema::create('clients', function (Blueprint $table): void {
+            $table->id();
+            $table->string('code');
+        });
+        Schema::create('events', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('client_id')->nullable();
+            $table->string('tenant_code');
+            $table->string('title');
+        });
+
+        DB::table('clients')->insert([
+            ['id' => 10, 'code' => 'pyme_rural'],
+            ['id' => 11, 'code' => 'onticket'],
+        ]);
+        DB::table('events')->insert([
+            [
+                'id' => 20,
+                'client_id' => null,
+                'tenant_code' => 'onticket',
+                'title' => '26.º Fiesta de la Tradición y 4.º Encuentro de Agrupaciones Gauchas',
+            ],
+            [
+                'id' => 21,
+                'client_id' => 11,
+                'tenant_code' => 'onticket',
+                'title' => 'Otro evento',
+            ],
+        ]);
+
+        $migration = require database_path('migrations/2026_09_28_000200_assign_arrufo_event_to_pyme_rural_client.php');
+        $migration->up();
+
+        $this->assertDatabaseHas('events', ['id' => 20, 'client_id' => 10]);
+        $this->assertDatabaseHas('events', ['id' => 21, 'client_id' => 11]);
+    }
+}