Direct payments for invoices

Events can be moved to archive and moved back
Fixed validation

database/migrations/2026_05_12_140002_update_invoices.php

@@ -0,0 +1,21 @@
+<?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('invoices', function (Blueprint $table) {
+            $table->string('payment_purpose')->nullable()->default(null)->after('contact_bank_iban');
+        });
+    }
+
+    public function down(): void
+    {
+
+    }
+};