Add dashboard UID auto-generation and Gitea CI workflow

environments/modules/grafana_notification_policies/locals.tf

@@ -0,0 +1,7 @@
+locals {
+  # Define the default contact point name from the contact_points list
+  default_contact_point_name = try(
+    element([for cp in var.contact_points : cp.name if try(cp.is_default, false)], 0),
+    null
+  )
+}