feat: add guest notification center

database/migrations/2025_11_16_120000_create_guest_notifications_tables.php

@@ -0,0 +1,50 @@
+<?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::create('guest_notifications', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('tenant_id')->constrained()->cascadeOnDelete();
+            $table->foreignId('event_id')->constrained()->cascadeOnDelete();
+            $table->string('type', 64);
+            $table->string('title', 160);
+            $table->text('body')->nullable();
+            $table->json('payload')->nullable();
+            $table->string('audience_scope', 32)->default('all');
+            $table->string('target_identifier', 120)->nullable();
+            $table->string('status', 32)->default('active');
+            $table->unsignedTinyInteger('priority')->default(0);
+            $table->timestamp('expires_at')->nullable();
+            $table->timestamps();
+
+            $table->index(['event_id', 'audience_scope']);
+            $table->index(['event_id', 'status']);
+            $table->index(['event_id', 'created_at']);
+        });
+
+        Schema::create('guest_notification_receipts', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('guest_notification_id')->constrained()->cascadeOnDelete();
+            $table->string('guest_identifier', 120);
+            $table->string('status', 32)->default('new');
+            $table->timestamp('read_at')->nullable();
+            $table->timestamp('dismissed_at')->nullable();
+            $table->timestamps();
+
+            $table->unique(['guest_notification_id', 'guest_identifier']);
+            $table->index(['guest_identifier', 'status']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('guest_notification_receipts');
+        Schema::dropIfExists('guest_notifications');
+    }
+};