fix(server): rate limit failed server validations on cloud

database/migrations/2026_10_23_090005_add_server_validation_limits_to_instance_settings_table.php

@@ -0,0 +1,34 @@
+<?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('instance_settings', function (Blueprint $table) {
+            $table->unsignedInteger('server_validation_rate_limit_seconds')->default(600);
+            $table->unsignedInteger('server_validation_max_failures_per_ip')->default(10);
+            $table->unsignedInteger('server_validation_max_failures_per_team')->default(30);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('instance_settings', function (Blueprint $table) {
+            $table->dropColumn([
+                'server_validation_rate_limit_seconds',
+                'server_validation_max_failures_per_ip',
+                'server_validation_max_failures_per_team',
+            ]);
+        });
+    }
+};