feat: add domain management system

database/migrations/2025_11_14_161642_create_domains_table.php

@@ -0,0 +1,37 @@
+<?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('domains', function (Blueprint $table) {
+            $table->id();
+            $table->string('name')->unique();
+            $table->boolean('is_active')->default(true);
+            $table->integer('daily_mailbox_limit')->default(100);
+            $table->string('domain_type')->nullable();
+            $table->string('provider_type')->nullable();
+            $table->timestamp('starts_at')->nullable();
+            $table->timestamp('ends_at')->nullable();
+            $table->timestamp('last_used_at')->nullable();
+            $table->timestamp('checked_at')->nullable();
+            $table->softDeletes();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('domains');
+    }
+};