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

routes/api.php

@@ -36,6 +36,7 @@ use App\Http\Controllers\Api\Admin\EmailNotificationTemplateController;
 use App\Http\Controllers\Api\Admin\ActivityLog\ActivityLogController;
 use App\Http\Controllers\Api\Admin\Rebuild\AdminReinstallLogController;
 use App\Http\Controllers\Api\Admin\EmailLog\EmailLogController;
+use App\Http\Controllers\Api\Admin\MailCampaign\MailCampaignController;
 use App\Http\Controllers\Api\Admin\Transaction\AdminTransactionController;
 use App\Http\Controllers\Api\Admin\Ticket\TicketController as AdminTicketController;
 use App\Http\Controllers\Api\Admin\Docs\PostCategoryController as AdminPostCategoryController;
@@ -699,6 +700,17 @@ Route::prefix('v1')
                         Route::get('{id}', 'show')->whereNumber('id');
                     });
 
+                // Mail Campaigns (module: mail-campaign)
+                Route::prefix('mail-campaigns')
+                    ->controller(MailCampaignController::class)
+                    ->group(function () {
+                        Route::get('/', 'index')->middleware('perm:mail-campaign.view');
+                        Route::post('preview', 'preview')->middleware('perm:mail-campaign.create');
+                        Route::get('{uuid}/preview', 'previewCampaign')->middleware('perm:mail-campaign.view');
+                        Route::get('{uuid}', 'show')->middleware('perm:mail-campaign.view');
+                        Route::post('/', 'store')->middleware('perm:mail-campaign.create');
+                    });
+
                 // VM Rebuild Logs — who rebuilt, which OS, post-rebuild password
                 Route::prefix('rebuild-logs')
                     ->controller(AdminReinstallLogController::class)