hosts: add monitoring02 configuration

New test-tier host for monitoring stack expansion with:
- Static IP 10.69.13.24
- 4 CPU cores, 4GB RAM, 20GB disk
- Vault integration and NATS-based deployment enabled

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

terraform/vms.tf

@@ -79,6 +79,13 @@ locals {
       disk_size = "20G"
       vault_wrapped_token = "s.OOqjEECeIV7dNgCS6jNmyY3K"
     }
+    "monitoring02" = {
+      ip        = "10.69.13.24/24"
+      cpu_cores = 4
+      memory    = 4096
+      disk_size = "20G"
+      vault_wrapped_token = "s.uXpdoGxHXpWvTsGbHkZuq1jF"
+    }
   }
 
   # Compute VM configurations with defaults applied