Event addons bookable

database/migrations/2026_08_12_150010_add_addons_to_events.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::table('events', function (Blueprint $table) {
+            // Buchbare Zusätze (Event-Addons) als Ja/Nein-Optionen mit Preis.
+            // Struktur: [ { key, title, description, price, flat } ]
+            $table->json('addons')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('events', function (Blueprint $table) {
+            $table->dropColumn('addons');
+        });
+    }
+};

database/migrations/2026_08_12_150020_create_event_participant_addons.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        // Gewählte Zusätze je Anmeldung -- eine Zeile pro gebuchtem Addon.
+        // Titel/Preis/Betrag werden als Snapshot mitgespeichert (relevant für die spätere Rechnung).
+        Schema::create('event_participant_addons', function (Blueprint $table) {
+            $table->id();
+            $table->string('tenant');
+
+            $table->foreignId('event_id')->constrained('events', 'id')->cascadeOnDelete()->cascadeOnUpdate();
+            $table->foreignId('event_participant_id')->constrained('event_participants', 'id')->cascadeOnDelete()->cascadeOnUpdate();
+
+            $table->string('addon_key');
+            $table->string('title');
+            $table->float('price')->default(0);
+            $table->boolean('flat')->default(false);
+            $table->integer('days')->default(0);
+            $table->float('amount')->default(0);
+
+            $table->timestamps();
+
+            $table->foreign('tenant')->references('slug')->on('tenants')->restrictOnDelete()->cascadeOnUpdate();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('event_participant_addons');
+    }
+};