[messaging] remove v2 feature flag (#4845)

## Context
We are now removing Messaging V2 feature flag to use it everywhere.

## Implementation
- renaming FetchWorkspaceMessagesCommandsModule to
MessagingCommandModule to make it more generic since it it hosts all
commands related to the messaging module
- creating a crons folder inside commands and jobs crons should be named
with xxx.cron.command.ts instead of xxx.command.ts. Same for jobs, jobs
should be named with xxx.cron.job.ts. In a future PR we should make sure
those CronJobs implement a CronJob interface since it's a bit different
(a CronJob does not contain a payload compared to a Job)
- Cron commands have been renamed to "cron:$module:command" so
`fetch-all-workspaces-messages-from-cache:cron:start` has been renamed
to `cron:messaging:gmail-fetch-messages-from-cache`. Also having to
create a command to stop the cron is a bit painful to maintain so I
removed them for now, this can be easily done manually with pg-boss or
bull-mq
- Removing full-sync and partial-sync commands as they were there for
testing only, we might put them back at some point but we will have to
adapt the code anyway.
- Feature flag has been removed from the MessageChannel standard object
to make sure those new columns are created during the next sync-metadata

packages/twenty-server/src/modules/messaging/standard-objects/message-channel.object-metadata.ts

@@ -1,4 +1,3 @@
-import { FeatureFlagKeys } from 'src/engine/core-modules/feature-flag/feature-flag.entity';
 import { FieldMetadataType } from 'src/engine/metadata-modules/field-metadata/field-metadata.entity';
 import {
   RelationMetadataType,
@@ -7,7 +6,6 @@ import {
 import { messageChannelStandardFieldIds } from 'src/engine/workspace-manager/workspace-sync-metadata/constants/standard-field-ids';
 import { standardObjectIds } from 'src/engine/workspace-manager/workspace-sync-metadata/constants/standard-object-ids';
 import { FieldMetadata } from 'src/engine/workspace-manager/workspace-sync-metadata/decorators/field-metadata.decorator';
-import { Gate } from 'src/engine/workspace-manager/workspace-sync-metadata/decorators/gate.decorator';
 import { IsNullable } from 'src/engine/workspace-manager/workspace-sync-metadata/decorators/is-nullable.decorator';
 import { IsSystem } from 'src/engine/workspace-manager/workspace-sync-metadata/decorators/is-system.decorator';
 import { ObjectMetadata } from 'src/engine/workspace-manager/workspace-sync-metadata/decorators/object-metadata.decorator';
@@ -119,9 +117,6 @@ export class MessageChannelObjectMetadata extends BaseObjectMetadata {
     description: 'Last sync cursor',
     icon: 'IconHistory',
   })
-  @Gate({
-    featureFlag: FeatureFlagKeys.IsFullSyncV2Enabled,
-  })
   syncCursor: string;
 
   @FieldMetadata({
@@ -131,9 +126,6 @@ export class MessageChannelObjectMetadata extends BaseObjectMetadata {
     description: 'Last sync date',
     icon: 'IconHistory',
   })
-  @Gate({
-    featureFlag: FeatureFlagKeys.IsFullSyncV2Enabled,
-  })
   @IsNullable()
   syncedAt: string;
 
@@ -170,9 +162,6 @@ export class MessageChannelObjectMetadata extends BaseObjectMetadata {
       },
     ],
   })
-  @Gate({
-    featureFlag: FeatureFlagKeys.IsFullSyncV2Enabled,
-  })
   @IsNullable()
   syncStatus: MessageChannelSyncStatus;
 
@@ -183,9 +172,6 @@ export class MessageChannelObjectMetadata extends BaseObjectMetadata {
     description: 'Ongoing sync started at',
     icon: 'IconHistory',
   })
-  @Gate({
-    featureFlag: FeatureFlagKeys.IsFullSyncV2Enabled,
-  })
   @IsNullable()
   ongoingSyncStartedAt: string;
 }