[GH-25484] Fix draft removal on post deletion (#25715)

* [GH-25484] Fix draft removal on post deletion

* [GH-25484] Add batch migration to remove orphan drafts

* [GH-25484] Fix tests of migration and draft store

* [GH-25484] Remove translation file changes.

* [GH-25484] Remove translation file changes.

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Co-authored-by: Devin Binnie <52460000+devinbinnie@users.noreply.github.com>
Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Harrison Healey <harrisonmhealey@gmail.com>

server/public/model/job.go

@@ -38,6 +38,7 @@ const (
 	JobTypeCleanupDesktopTokens         = "cleanup_desktop_tokens"
 	JobTypeDeleteEmptyDraftsMigration   = "delete_empty_drafts_migration"
 	JobTypeRefreshPostStats             = "refresh_post_stats"
+	JobTypeDeleteOrphanDraftsMigration  = "delete_orphan_drafts_migration"
 	JobTypeExportUsersToCSV             = "export_users_to_csv"
 
 	JobStatusPending         = "pending"

server/public/model/migration.go

@@ -44,5 +44,6 @@ const (
 	MigrationKeyElasticsearchFixChannelIndex           = "elasticsearch_fix_channel_index_migration"
 	MigrationKeyS3Path                                 = "s3_path_migration"
 	MigrationKeyDeleteEmptyDrafts                      = "delete_empty_drafts_migration"
+	MigrationKeyDeleteOrphanDrafts                     = "delete_orphan_drafts_migration"
 	MigrationKeyAddIPFilteringPermissions              = "add_ip_filtering_permissions"
 )