feat(vaultwarden): add SMTP configuration options and enhance signup settings

- Introduced SMTP settings for Vaultwarden including host, port, security, and authentication details.
- Added variables for signup verification, 2FA settings, password hints, and logging options.
- Updated Vaultwarden deployment to utilize new SMTP configurations.
- Enhanced Grafana module to support dynamic dashboard and datasource provisioning.
- Added LLM proxy configuration for Open Web UI with necessary environment variables.

terraform/modules/apps/vaultwarden/config.tf

@@ -1,6 +1,23 @@
 locals {
-  app_folder = var.persistent_folder
-  app_version = var.tag
-  app_fqdn    = var.fqdn
-  db_path     = var.db_folder != "" ? var.db_folder : local.app_folder
+  app_folder                        = var.persistent_folder
+  app_version                       = var.tag
+  app_fqdn                          = var.fqdn
+  db_path                           = var.db_folder != "" ? var.db_folder : local.app_folder
+  signup                            = var.signup_enabled ? "true" : "false"
+  signup_verify                     = var.signup_verify ? "true" : "false"
+  disable_2fa_remember              = var.disable_2fa_remember ? "true" : "false"
+  show_password_hint                = var.show_password_hint ? "true" : "false"
+  password_hints_allowed            = var.password_hints_allowed ? "true" : "false"
+  disable_icon_download             = var.disable_icon_download ? "true" : "false"
+  icon_service                      = var.icon_service
+  http_request_block_non_global_ips = var.http_request_block_non_global_ips ? "true" : "false"
+  extended_logging                  = var.extended_logging ? "true" : "false"
+  websocket_enabled                 = var.websocket_enabled ? "true" : "false"
+  sends_allowed                     = var.sends_allowed ? "true" : "false"
+  trash_auto_delete_days            = var.trash_auto_delete_days
+  events_days_retain                = var.events_days_retain
+  admin_session_lifetime            = tostring(var.admin_session_lifetime)
+
+  # SMTP locals — only enable mail if host or from is configured
+  smtp_enabled = var.smtp_host != "" || var.smtp_from != ""
 }