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/apps.tf

@@ -71,10 +71,31 @@ module "gitea" {
   fqdn     = local.gitea_fqdn
   app_name = "A13Labs git repository"
 
-  relay_smtp_host     = local.scaleway_smtp_host
-  relay_smtp_port     = local.scaleway_smtp_port
-  relay_smtp_username = var.scaleway_project_id
-  relay_smtp_password = scaleway_iam_api_key.mail_app_api.secret_key
+  smtp_host     = local.scaleway_smtp_host
+  smtp_port     = local.scaleway_smtp_port
+  smtp_username = var.scaleway_project_id
+  smtp_password = scaleway_iam_api_key.mail_app_api.secret_key
 
   from_email = "gitea@${local.primary_domain}"
 }
+
+module "sftpgo" {
+  source = "../modules/apps/sftpgo"
+
+  persistent_folder = local.persistent_folder
+  backup_folder     = local.sftpgo_backup_path
+
+  admin_username = "admin"
+  admin_password = var.sftpgo_admin_password
+
+  tag = local.sftpgo_version
+
+  smtp_host     = local.scaleway_smtp_host
+  smtp_port     = local.scaleway_smtp_port
+  smtp_username = var.scaleway_project_id
+  smtp_password = scaleway_iam_api_key.mail_app_api.secret_key
+  from_email    = "sftpgo@${local.primary_domain}"
+
+  access_key = scaleway_iam_api_key.sftpgo_app_api.access_key
+  secret_key = scaleway_iam_api_key.sftpgo_app_api.secret_key
+}