feat(events): associate purchases and integrations with events

tests/Feature/Migrations/AddClientIdToEventsTest.php

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+<?php
+
+namespace Tests\Feature\Migrations;
+
+use App\Domains\Core\Client\Models\Client;
+use App\Domains\Ticketing\Event\Models\Event;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Tests\TestCase;
+
+class AddClientIdToEventsTest extends TestCase
+{
+    public function test_event_client_overrides_the_tenant_client_when_configured(): void
+    {
+        Schema::create('clients', function (Blueprint $table): void {
+            $table->id();
+            $table->string('code');
+            $table->string('name');
+        });
+        Schema::create('tenants', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('client_id');
+            $table->string('codigo');
+        });
+        Schema::create('events', function (Blueprint $table): void {
+            $table->id();
+            $table->string('tenant_code');
+            $table->string('title');
+            $table->timestamps();
+        });
+
+        DB::table('clients')->insert([
+            ['id' => 10, 'code' => 'tenant-client', 'name' => 'Tenant Client'],
+            ['id' => 11, 'code' => 'event-client', 'name' => 'Event Client'],
+        ]);
+        DB::table('tenants')->insert(['id' => 20, 'client_id' => 10, 'codigo' => 'tenant']);
+        DB::table('events')->insert([
+            'id' => 30,
+            'tenant_code' => 'tenant',
+            'title' => 'Event',
+            'created_at' => now(),
+            'updated_at' => now(),
+        ]);
+
+        $migration = require database_path('migrations/2026_09_28_000000_add_client_id_to_events.php');
+        $migration->up();
+
+        $event = Event::query()->findOrFail(30);
+        $this->assertSame(10, $event->effectiveClient()->id);
+
+        $event->update(['client_id' => 11]);
+
+        $this->assertSame(11, $event->fresh()->effectiveClient()->id);
+        $this->assertTrue(Client::query()->findOrFail(11)->events()->whereKey(30)->exists());
+    }
+}

tests/Feature/Migrations/AddEventIdToPurchasesTest.php

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+<?php
+
+namespace Tests\Feature\Migrations;
+
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+use Tests\TestCase;
+
+class AddEventIdToPurchasesTest extends TestCase
+{
+    public function test_it_backfills_the_event_from_purchase_items(): void
+    {
+        Schema::create('events', fn (Blueprint $table) => $table->id());
+        Schema::create('compras', fn (Blueprint $table) => $table->id());
+        Schema::create('catalog_items', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('event_id')->nullable();
+        });
+        Schema::create('compra_items', function (Blueprint $table): void {
+            $table->id();
+            $table->foreignId('compra_id');
+            $table->foreignId('source_catalog_item_id');
+        });
+
+        DB::table('events')->insert([['id' => 10], ['id' => 11]]);
+        DB::table('compras')->insert([['id' => 20], ['id' => 21]]);
+        DB::table('catalog_items')->insert([
+            ['id' => 30, 'event_id' => 10],
+            ['id' => 31, 'event_id' => 11],
+        ]);
+        DB::table('compra_items')->insert([
+            ['compra_id' => 20, 'source_catalog_item_id' => 30],
+            ['compra_id' => 21, 'source_catalog_item_id' => 30],
+            ['compra_id' => 21, 'source_catalog_item_id' => 31],
+        ]);
+
+        $migration = require database_path('migrations/2026_09_28_000100_add_event_id_to_compras.php');
+        $migration->up();
+
+        $this->assertDatabaseHas('compras', ['id' => 20, 'event_id' => 10]);
+        $this->assertDatabaseHas('compras', ['id' => 21, 'event_id' => null]);
+    }
+}

tests/Feature/Migrations/AssignArrufoEventToPymeRuralClientTest.php

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+<?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]);
+    }
+}