feat: add internal endpoint controls

database/migrations/2026_07_02_142003_add_webhook_internal_allowlist_to_instance_settings_table.php

@@ -0,0 +1,23 @@
+<?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('instance_settings', function (Blueprint $table) {
+            $table->json('webhook_allowed_internal_hosts')->nullable();
+            $table->boolean('webhook_allow_localhost')->default(false);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->dropColumn(['webhook_allowed_internal_hosts', 'webhook_allow_localhost']);
+        });
+    }
+};