ns1: recreate with OpenTofu workflow

Old VM had incorrect hardware-configuration.nix with hardcoded UUIDs
that didn't match actual disk layout, causing boot failure (emergency mode).

Recreated using template2-based configuration for OpenTofu provisioning.

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

terraform/vault/hosts-generated.tf

@@ -26,6 +26,11 @@ locals {
         "secret/data/shared/dns/*",
       ]
     }
+    "ns1" = {
+      paths = [
+        "secret/data/hosts/ns1/*",
+      ]
+    }
   
   }