feat(events): add event categories and filtering

database/migrations/2026_09_18_000600_create_event_categories_table.php

@@ -0,0 +1,41 @@
+<?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::create('event_categories', function (Blueprint $table): void {
+            $table->id();
+            $table->string('tenant_code');
+            $table->string('nombre');
+            $table->timestamps();
+            $table->foreign('tenant_code')->references('codigo')->on('tenants')->cascadeOnUpdate()->cascadeOnDelete();
+            $table->unique(['tenant_code', 'nombre']);
+        });
+
+        Schema::table('events', function (Blueprint $table): void {
+            $table->foreignId('event_category_id')->nullable()->constrained('event_categories')->nullOnDelete();
+        });
+
+        if (DB::table('tenants')->where('codigo', 'onticket')->exists()) {
+            $now = now();
+            foreach (['Música', 'Teatro', 'Deportes', 'Infantiles', 'Otros'] as $nombre) {
+                DB::table('event_categories')->insert([
+                    'tenant_code' => 'onticket', 'nombre' => $nombre,
+                    'created_at' => $now, 'updated_at' => $now,
+                ]);
+            }
+        }
+    }
+
+    public function down(): void
+    {
+        Schema::table('events', fn (Blueprint $table) => $table->dropConstrainedForeignId('event_category_id'));
+        Schema::dropIfExists('event_categories');
+    }
+};