feat: Enhancements to MessageQueue Module with Decorators (#5657)

### Overview

This PR introduces significant enhancements to the MessageQueue module
by integrating `@Processor`, `@Process`, and `@InjectMessageQueue`
decorators. These changes streamline the process of defining and
managing queue processors and job handlers, and also allow for
request-scoped handlers, improving compatibility with services that rely
on scoped providers like TwentyORM repositories.

### Key Features

1. **Decorator-based Job Handling**: Use `@Processor` and `@Process`
decorators to define job handlers declaratively.
2. **Request Scope Support**: Job handlers can be scoped per request,
enhancing integration with request-scoped services.

### Usage

#### Defining Processors and Job Handlers

The `@Processor` decorator is used to define a class that processes jobs
for a specific queue. The `@Process` decorator is applied to methods
within this class to define specific job handlers.

##### Example 1: Specific Job Handlers

```typescript
import { Processor, Process, InjectMessageQueue } from 'src/engine/integrations/message-queue';

@Processor('taskQueue')
export class TaskProcessor {

  @Process('taskA')
  async handleTaskA(job: { id: string, data: any }) {
    console.log(`Handling task A with data:`, job.data);
    // Logic for task A
  }

  @Process('taskB')
  async handleTaskB(job: { id: string, data: any }) {
    console.log(`Handling task B with data:`, job.data);
    // Logic for task B
  }
}
```

In the example above, `TaskProcessor` is responsible for processing jobs
in the `taskQueue`. The `handleTaskA` method will only be called for
jobs with the name `taskA`, while `handleTaskB` will be called for
`taskB` jobs.

##### Example 2: General Job Handler

```typescript
import { Processor, Process, InjectMessageQueue } from 'src/engine/integrations/message-queue';

@Processor('generalQueue')
export class GeneralProcessor {

  @Process()
  async handleAnyJob(job: { id: string, name: string, data: any }) {
    console.log(`Handling job ${job.name} with data:`, job.data);
    // Logic for any job
  }
}
```

In this example, `GeneralProcessor` handles all jobs in the
`generalQueue`, regardless of the job name. The `handleAnyJob` method
will be invoked for every job added to the `generalQueue`.

#### Adding Jobs to a Queue

You can use the `@InjectMessageQueue` decorator to inject a queue into a
service and add jobs to it.

##### Example:

```typescript
import { Injectable } from '@nestjs/common';
import { InjectMessageQueue, MessageQueue } from 'src/engine/integrations/message-queue';

@Injectable()
export class TaskService {
  constructor(
    @InjectMessageQueue('taskQueue') private readonly taskQueue: MessageQueue,
  ) {}

  async addTaskA(data: any) {
    await this.taskQueue.add('taskA', data);
  }

  async addTaskB(data: any) {
    await this.taskQueue.add('taskB', data);
  }
}
```

In this example, `TaskService` adds jobs to the `taskQueue`. The
`addTaskA` and `addTaskB` methods add jobs named `taskA` and `taskB`,
respectively, to the queue.

#### Using Scoped Job Handlers

To utilize request-scoped job handlers, specify the scope in the
`@Processor` decorator. This is particularly useful for services that
use scoped repositories like those in TwentyORM.

##### Example:

```typescript
import { Processor, Process, InjectMessageQueue, Scope } from 'src/engine/integrations/message-queue';

@Processor({ name: 'scopedQueue', scope: Scope.REQUEST })
export class ScopedTaskProcessor {

  @Process('scopedTask')
  async handleScopedTask(job: { id: string, data: any }) {
    console.log(`Handling scoped task with data:`, job.data);
    // Logic for scoped task, which might use request-scoped services
  }
}
```

Here, the `ScopedTaskProcessor` is associated with `scopedQueue` and
operates with request scope. This setup is essential when the job
handler relies on services that need to be instantiated per request,
such as scoped repositories.

### Migration Notes

- **Decorators**: Refactor job handlers to use `@Processor` and
`@Process` decorators.
- **Request Scope**: Utilize the scope option in `@Processor` if your
job handlers depend on request-scoped services.

Fix #5628

---------

Co-authored-by: Weiko <corentin@twenty.com>

packages/twenty-server/src/modules/connected-account/auto-companies-and-contacts-creation/jobs/auto-companies-and-contacts-creation-job.module.ts

@@ -5,11 +5,6 @@ import { CreateCompanyAndContactJob } from 'src/modules/connected-account/auto-c
 
 @Module({
   imports: [AutoCompaniesAndContactsCreationModule],
-  providers: [
-    {
-      provide: CreateCompanyAndContactJob.name,
-      useClass: CreateCompanyAndContactJob,
-    },
-  ],
+  providers: [CreateCompanyAndContactJob],
 })
 export class AutoCompaniesAndContactsCreationJobModule {}

packages/twenty-server/src/modules/connected-account/auto-companies-and-contacts-creation/jobs/create-company-and-contact.job.ts

@@ -1,7 +1,6 @@
-import { Injectable } from '@nestjs/common';
-
-import { MessageQueueJob } from 'src/engine/integrations/message-queue/interfaces/message-queue-job.interface';
-
+import { Process } from 'src/engine/integrations/message-queue/decorators/process.decorator';
+import { Processor } from 'src/engine/integrations/message-queue/decorators/processor.decorator';
+import { MessageQueue } from 'src/engine/integrations/message-queue/message-queue.constants';
 import { ObjectRecord } from 'src/engine/workspace-manager/workspace-sync-metadata/types/object-record';
 import { CreateCompanyAndContactService } from 'src/modules/connected-account/auto-companies-and-contacts-creation/services/create-company-and-contact.service';
 import { ConnectedAccountWorkspaceEntity } from 'src/modules/connected-account/standard-objects/connected-account.workspace-entity';
@@ -15,14 +14,13 @@ export type CreateCompanyAndContactJobData = {
   }[];
 };
 
-@Injectable()
-export class CreateCompanyAndContactJob
-  implements MessageQueueJob<CreateCompanyAndContactJobData>
-{
+@Processor(MessageQueue.contactCreationQueue)
+export class CreateCompanyAndContactJob {
   constructor(
     private readonly createCompanyAndContactService: CreateCompanyAndContactService,
   ) {}
 
+  @Process(CreateCompanyAndContactJob.name)
   async handle(data: CreateCompanyAndContactJobData): Promise<void> {
     const { workspaceId, connectedAccount, contactsToCreate } = data;
 

packages/twenty-server/src/modules/connected-account/auto-companies-and-contacts-creation/listeners/messaging-message-channel.listener.ts

@@ -1,8 +1,9 @@
-import { Inject, Injectable } from '@nestjs/common';
+import { Injectable } from '@nestjs/common';
 import { OnEvent } from '@nestjs/event-emitter';
 
 import { ObjectRecordUpdateEvent } from 'src/engine/integrations/event-emitter/types/object-record-update.event';
 import { objectRecordChangedProperties } from 'src/engine/integrations/event-emitter/utils/object-record-changed-properties.util';
+import { InjectMessageQueue } from 'src/engine/integrations/message-queue/decorators/message-queue.decorator';
 import { MessageQueue } from 'src/engine/integrations/message-queue/message-queue.constants';
 import { MessageQueueService } from 'src/engine/integrations/message-queue/services/message-queue.service';
 import { MessageChannelWorkspaceEntity } from 'src/modules/messaging/common/standard-objects/message-channel.workspace-entity';
@@ -14,7 +15,7 @@ import {
 @Injectable()
 export class MessagingMessageChannelListener {
   constructor(
-    @Inject(MessageQueue.messagingQueue)
+    @InjectMessageQueue(MessageQueue.messagingQueue)
     private readonly messageQueueService: MessageQueueService,
   ) {}