fix: Apply terraform fmt formatting to cost_optimized_backup example

- Fix spacing alignment in outputs.tf and variables.tf
- Add missing newlines at end of files
- Ensure all files pass terraform fmt validation

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: lgallard

examples/cost_optimized_backup/outputs.tf

@@ -23,7 +23,7 @@ output "backup_plan_ids" {
   description = "IDs of the backup plans by tier"
   value = {
     critical_tier    = module.cost_optimized_backup.backup_plan_ids["critical_tier"]
-    standard_tier    = module.cost_optimized_backup.backup_plan_ids["standard_tier"] 
+    standard_tier    = module.cost_optimized_backup.backup_plan_ids["standard_tier"]
     development_tier = module.cost_optimized_backup.backup_plan_ids["development_tier"]
   }
 }
@@ -46,23 +46,23 @@ output "cost_optimization_summary" {
   description = "Summary of cost optimization strategies implemented"
   value = {
     critical_tier = {
-      frequency         = "Every 6 hours"
-      cold_transition   = "1 day"
-      retention_period  = "30 days"
-      estimated_cost    = "~$5/month per 100GB"
+      frequency        = "Every 6 hours"
+      cold_transition  = "1 day"
+      retention_period = "30 days"
+      estimated_cost   = "~$5/month per 100GB"
     }
     standard_tier = {
-      frequency         = "Daily"
-      cold_transition   = "30 days"
-      retention_period  = "90 days"
-      estimated_cost    = "~$7/month per 100GB"
+      frequency        = "Daily"
+      cold_transition  = "30 days"
+      retention_period = "90 days"
+      estimated_cost   = "~$7/month per 100GB"
     }
     development_tier = {
-      frequency         = "Weekly"
-      cold_transition   = "None"
-      retention_period  = "7 days"
-      estimated_cost    = "~$1/month per 100GB"
+      frequency        = "Weekly"
+      cold_transition  = "None"
+      retention_period = "7 days"
+      estimated_cost   = "~$1/month per 100GB"
     }
     total_estimated_savings = "~60% compared to uniform daily backups"
   }
-}
+}

examples/cost_optimized_backup/variables.tf

@@ -22,7 +22,7 @@ variable "environment" {
   description = "Environment name (prod, staging, dev)"
   type        = string
   default     = "prod"
-  
+
   validation {
     condition     = contains(["prod", "staging", "dev"], var.environment)
     error_message = "Environment must be one of: prod, staging, dev."
@@ -62,9 +62,9 @@ variable "tags" {
   description = "A map of tags to assign to resources"
   type        = map(string)
   default = {
-    Terraform     = "true"
-    Environment   = "example"
-    Purpose       = "CostOptimizedBackup"
-    CostStrategy  = "MultiTier"
+    Terraform    = "true"
+    Environment  = "example"
+    Purpose      = "CostOptimizedBackup"
+    CostStrategy = "MultiTier"
   }
-}
+}