feat: Dynamic hook registration for WorkspaceQueryHooks (#6008)

#### Overview

This PR introduces a new API for dynamically registering and executing
pre and post query hooks in the Workspace Query Hook system using the
`@WorkspaceQueryHook` decorator. This approach eliminates the need for
manual provider registration, and fix the issue of `undefined` or `null`
repository using `@InjectWorkspaceRepository`.

#### New API

**Define a Hook**

Use the `@WorkspaceQueryHook` decorator to define pre or post hooks:

```typescript
@WorkspaceQueryHook({
  key: `calendarEvent.findMany`,
  scope: Scope.REQUEST,
})
export class CalendarEventFindManyPreQueryHook implements WorkspaceQueryHookInstance {
  async execute(userId: string, workspaceId: string, payload: FindManyResolverArgs): Promise<void> {
    if (!payload?.filter?.id?.eq) {
      throw new BadRequestException('id filter is required');
    }

    // Implement hook logic here
  }
}
```

This API simplifies the registration and execution of query hooks,
providing a more flexible and maintainable approach.

---------

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

packages/twenty-server/src/engine/twenty-orm/factories/scoped-workspace-datasource.factory.ts

@@ -14,7 +14,7 @@ export class ScopedWorkspaceDatasourceFactory {
 
   public async create(entities: EntitySchema[]) {
     const workspaceId: string | undefined =
-      this.request['req']?.['workspaceId'];
+      this.request?.['req']?.['workspaceId'];
 
     if (!workspaceId) {
       return null;