feat(mail): enhance mail configuration with getmail and dovecot settings

- Added getmail configuration generation using template files.
- Introduced postfix and dovecot configuration checksums for deployment.
- Created new dovecot configuration file and sieve script for email handling.
- Updated main.tf to utilize local variables for configuration management.
- Removed redundant external password hasher from main.tf.

feat(nginx): improve nginx configuration management

- Centralized nginx configuration into a local variable with checksum.
- Created separate config maps for default website configurations.
- Updated deployment to utilize new configuration structure.

feat(sftpgo): add SFTPGo application deployment

- Introduced SFTPGo with Kubernetes resources including namespace, config maps, and secrets.
- Configured SFTPGo with SMTP settings and AWS credentials.
- Implemented health checks and volume mounts for persistent storage.

refactor(seafile): remove Seafile module

- Deleted Seafile module and associated resources as part of cleanup.

terraform/k8sapps/backups.tf

@@ -37,12 +37,12 @@ module "gitea_backup" {
   target_folder = local.gitea_backup_path
 }
 
-module "nextcloud_backup" {
+module "sftpgo_backup" {
 
   source = "../modules/utils/scw_rclone"
 
-  namespace = kubernetes_namespace.nextcloud.metadata[0].name
-  app_name  = "nextcloud"
+  namespace = module.sftpgo.namespace
+  app_name  = module.sftpgo.app_name
 
   scaleway_organization_id = var.scaleway_organization_id
   scaleway_project_id      = var.scaleway_organization_id
@@ -51,8 +51,8 @@ module "nextcloud_backup" {
   bucket_name              = scaleway_object_bucket.backup.name
 
   retention_days = local.local_backup_retention_days
-  cron_schedule  = local.nextcloud_files_backup_cron_schedule
+  cron_schedule  = local.sftpgo_files_backup_cron_schedule
 
-  source_folder = local.nextcloud_path
-  target_folder = local.nextcloud_backup_path
+  source_folder = module.sftpgo.path
+  target_folder = local.sftpgo_backup_path
 }