Add guest policy settings

database/migrations/2026_01_01_200857_create_guest_policy_settings_table.php

@@ -0,0 +1,39 @@
+<?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::create('guest_policy_settings', function (Blueprint $table) {
+            $table->id();
+            $table->boolean('guest_downloads_enabled')->default(true);
+            $table->boolean('guest_sharing_enabled')->default(true);
+            $table->string('guest_upload_visibility')->default('review');
+            $table->unsignedInteger('per_device_upload_limit')->default(50);
+            $table->unsignedInteger('join_token_failure_limit')->default(10);
+            $table->unsignedInteger('join_token_failure_decay_minutes')->default(5);
+            $table->unsignedInteger('join_token_access_limit')->default(120);
+            $table->unsignedInteger('join_token_access_decay_minutes')->default(1);
+            $table->unsignedInteger('join_token_download_limit')->default(60);
+            $table->unsignedInteger('join_token_download_decay_minutes')->default(1);
+            $table->unsignedInteger('share_link_ttl_hours')->default(48);
+            $table->unsignedInteger('guest_notification_ttl_hours')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('guest_policy_settings');
+    }
+};