feat: add hero_config and event_config to Tenant model with validation and migration

database/migrations/2026_07_14_110000_add_hero_config_and_event_config_to_tenants_table.php

@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('tenants', function (Blueprint $table) {
+            $table->json('hero_config')->nullable();
+            $table->json('event_config')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('tenants', function (Blueprint $table) {
+            $table->dropColumn(['hero_config', 'event_config']);
+        });
+    }
+};