fix: user invite email not sending and null variables

- Add missing BullModule queue registration and BullBoardModule to UsersModule
- Add invitingUser to event payloads to track who sent the invite
- Fix incorrect global variable in SendInviteUsersMailMessage (__views_dir -> __images_dirname)
- Use invitingUser as fromUser instead of invited user in email
- Update processors to use BullMQ pattern

Fixes issues:
1. Email not sending due to missing queue/processor registration
2. Null variables in email (firstName/lastName) because fromUser was the invited user
3. Image attachment failing due to wrong path

packages/server/src/modules/UsersModule/Users.module.ts

@@ -1,4 +1,7 @@
 import { Module } from '@nestjs/common';
+import { BullModule } from '@nestjs/bullmq';
+import { BullBoardModule } from '@bull-board/nestjs';
+import { BullMQAdapter } from '@bull-board/api/bullMQAdapter';
 import { ActivateUserService } from './commands/ActivateUser.service';
 import { DeleteUserService } from './commands/DeleteUser.service';
 import { EditUserService } from './commands/EditUser.service';
@@ -18,11 +21,24 @@ import { AcceptInviteUserService } from './commands/AcceptInviteUser.service';
 import { InviteTenantUserService } from './commands/InviteUser.service';
 import { UsersInviteController } from './UsersInvite.controller';
 import { InjectSystemModel } from '../System/SystemModels/SystemModels.module';
+import { SendInviteUserMailQueue } from './Users.constants';
+import InviteSendMainNotificationSubscribe from './subscribers/InviteSendMailNotification.subscriber';
+import { SendInviteUserMailProcessor } from './processors/SendInviteUserMail.processor';
+import { SendInviteUsersMailMessage } from './commands/SendInviteUsersMailMessage.service';
+import { MailModule } from '../Mail/Mail.module';
 
 const models = [InjectSystemModel(UserInvite)];
 
 @Module({
-  imports: [TenancyModule],
+  imports: [
+    TenancyModule,
+    MailModule,
+    BullModule.registerQueue({ name: SendInviteUserMailQueue }),
+    BullBoardModule.forFeature({
+      name: SendInviteUserMailQueue,
+      adapter: BullMQAdapter,
+    }),
+  ],
   exports: [...models],
   providers: [
     ...models,
@@ -39,6 +55,9 @@ const models = [InjectSystemModel(UserInvite)];
     SyncTenantUserMutateSubscriber,
     SyncSystemSendInviteSubscriber,
     SyncTenantAcceptInviteSubscriber,
+    InviteSendMainNotificationSubscribe,
+    SendInviteUserMailProcessor,
+    SendInviteUsersMailMessage,
     UsersApplication
   ],
   controllers: [UsersController, UsersInviteController],