docs: switch CLAUDE.md from terraform to opentofu/tofu commands

CLAUDE.md

@@ -4,28 +4,28 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Overview
 
-This is a Terraform configuration for managing TowerOps network monitoring resources. It uses the custom `towerops` Terraform provider to create and manage sites and devices in the TowerOps platform.
+This is an OpenTofu configuration for managing TowerOps network monitoring resources. It uses the custom `towerops` provider to create and manage sites and devices in the TowerOps platform.
 
 ## Commands
 
 ```bash
-# Initialize Terraform (downloads provider)
-terraform init
+# Initialize OpenTofu (downloads provider)
+tofu init
 
 # Preview changes
-terraform plan
+tofu plan
 
 # Apply changes
-terraform apply
+tofu apply
 
 # Destroy all resources
-terraform destroy
+tofu destroy
 
-# Format Terraform files
-terraform fmt
+# Format files
+tofu fmt
 
 # Validate configuration
-terraform validate
+tofu validate
 ```
 
 ## Authentication
@@ -55,7 +55,6 @@ Note: Changing `site_id` forces resource replacement.
 ## Import Existing Resources
 
 ```bash
-terraform import towerops_site.example <uuid>
-terraform import towerops_device.example <uuid>
+tofu import towerops_site.example <uuid>
+tofu import towerops_device.example <uuid>
 ```
-- use opentofu