hosts: add testvm01, testvm02, testvm03 test hosts

Three permanent test hosts for validating deployment and bootstrapping
workflow. Each host configured with:
- Static IP (10.69.13.20-22/24)
- Vault AppRole integration
- Bootstrap from deploy-test-hosts branch

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

terraform/vault/hosts-generated.tf

@@ -5,6 +5,22 @@
 # Each host gets access to its own secrets under hosts/<hostname>/*
 locals {
   generated_host_policies = {
+    "testvm01" = {
+      paths = [
+        "secret/data/hosts/testvm01/*",
+      ]
+    }
+    "testvm02" = {
+      paths = [
+        "secret/data/hosts/testvm02/*",
+      ]
+    }
+    "testvm03" = {
+      paths = [
+        "secret/data/hosts/testvm03/*",
+      ]
+    }
+  
   }
 
   # Placeholder secrets - user should add actual secrets manually or via tofu