Add bulk update gateway endpoint to vCenter API routes

- Introduced a new POST route 'bulk-update-gateway' for bulk updating gateways.
- This route is protected by the 'module-vcenter.manager' permission middleware.

database/migrations/2026_08_06_120421_create_ip_pool_contacts_table.php

@@ -0,0 +1,26 @@
+<?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('ip_pool_contacts', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('ip_pool_id')->constrained('ip_pools')->cascadeOnDelete();
+            $table->string('email');
+            $table->enum('type', ['to', 'cc']);
+            $table->timestamps();
+
+            $table->unique(['ip_pool_id', 'email', 'type']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('ip_pool_contacts');
+    }
+};