feat: grafana IRM escalation module

новый модуль modules/grafana_irm_escalation, dev/adibrov подключён.
секреты (oncall_access_token, user id) хранятся в Vault, в git не попадают

environments/dev/adibrov/locals.tf

@@ -5,6 +5,32 @@ locals {
     "X-Disable-Provenance" = var.disable_provenance ? "true" : "false"
   }
 
+  # IRM escalation chains
+  # ID пользователей/расписаний хранятся в Vault: app/groups/monitoring/grafana/dev/ext
+  irm_escalation_chains = [
+    {
+      name = "infra-default"
+      steps = [
+        {
+          type              = "notify_persons"
+          persons_to_notify = [data.vault_kv_secret_v2.secret_ext.data["irm_user_adibrov"]]
+        },
+        {
+          type             = "wait"
+          duration_seconds = 300
+        },
+        {
+          type              = "notify_persons"
+          persons_to_notify = [data.vault_kv_secret_v2.secret_ext.data["irm_user_adibrov"]]
+          important         = true
+        },
+        {
+          type = "repeat_escalation"
+        }
+      ]
+    }
+  ]
+
   # Contact points configuration
   contact_points = [
     {