feat: Implement mail campaign feature with CRUD operations and email sending capabilities

database/migrations/2026_08_20_000001_create_mail_campaigns_table.php

@@ -0,0 +1,40 @@
+<?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('mail_campaigns', function (Blueprint $table) {
+            $table->id();
+            $table->uuid('uuid')->unique();
+            $table->string('name', 255)->nullable();
+            $table->bigInteger('template_id')->nullable()->index();
+            $table->string('subject', 255);
+            $table->longText('message');
+            $table->unsignedInteger('total_recipients')->default(0);
+            $table->unsignedInteger('sent_count')->default(0);
+            $table->unsignedInteger('failed_count')->default(0);
+            $table->string('status', 20)->default('queued');
+            $table->bigInteger('created_by')->nullable()->index();
+            $table->timestamp('completed_at')->nullable();
+            $table->timestamps();
+        });
+
+        Schema::table('mail', function (Blueprint $table) {
+            $table->bigInteger('campaign_id')->nullable()->index()->after('id');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('mail', function (Blueprint $table) {
+            $table->dropColumn('campaign_id');
+        });
+
+        Schema::dropIfExists('mail_campaigns');
+    }
+};

database/migrations/2026_08_20_000002_add_cc_bcc_recipient_type_to_mail_campaigns_table.php

@@ -0,0 +1,24 @@
+<?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('mail_campaigns', function (Blueprint $table) {
+            $table->string('cc', 1000)->nullable()->after('message');
+            $table->string('bcc', 1000)->nullable()->after('cc');
+            $table->string('recipient_type', 20)->default('selected')->after('bcc');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('mail_campaigns', function (Blueprint $table) {
+            $table->dropColumn(['cc', 'bcc', 'recipient_type']);
+        });
+    }
+};

database/seeders/RolesAndPermissions.php

@@ -21,6 +21,11 @@ class RolesAndPermissions extends Seeder
             'customer.destroy',
             'customer.manager',
 
+            // Chiến dịch email
+            'mail-campaign.view',
+            'mail-campaign.create',
+            'mail-campaign.manager',
+
             // Nhân sự
             'administrator.view',
             'administrator.create',