feat: add disk exporter module and related configurations

- Introduced a new disk exporter module to monitor disk health using SMART data.
- Updated `apps.tf` to include the disk exporter module with necessary parameters.
- Added local variables for smartctl version and checksum in `config.tf`.
- Enhanced `alertmanager.yml` to handle DiskUnhealthy alerts with specific grouping and dispatch settings.
- Created new Prometheus rules for monitoring disk health, including alerts for unhealthy disks.
- Updated Prometheus configuration to scrape metrics from the new disk exporter.
- Enhanced Telegram notification template to include resolved alerts and improved formatting.
- Updated the auth-exporter module to specify the Python image tag correctly.
- Created the disk-exporter module with Kubernetes resources, including deployment, service account, and config map.
- Added necessary Python scripts and requirements for the disk exporter functionality.

terraform/apps/dev-01/config.tf

@@ -184,6 +184,9 @@ locals {
     auth_password = local.mail_app_api_secret_key
   }
 
+  smartctl_static_version = "8.0-198-g34e7e4975211"
+  smartctl_sha256         = "d7e779664248942bb519b254dcb49cddaec2593e192cc468254c58e64da20840"
+
   telegram_chat_id = "5432313610" # a13labs channel
   telegram_message = file("${path.module}/resources/telegram.tpl")