feat: major restructuring in migration to terragrunt

- migrate from individual terraform files to config-driven terragrunt module structure
- add vault_cluster module with config discovery system
- replace individual .tf files with centralized config.hcl
- restructure auth and secret backends as configurable modules
- move auth roles and secret backends to yaml-based configuration
- convert policies from .hcl to .yaml format, add rules/auth definition
- add pre-commit hooks for yaml formatting and file cleanup
- add terragrunt cache to gitignore
- update makefile with terragrunt commands and format target

Makefile

@@ -1,20 +1,29 @@
-.PHONY: init plan apply help
+.PHONY: init plan apply format
+
+#init:
+#	@echo "Sourcing environment and initializing Terraform..."
+#	@source ./env && terraform init
+#
+#plan:
+#	@echo "Sourcing environment and planning Terraform changes..."
+#	@source ./env && terraform plan
+#
+#apply:
+#	@echo "Sourcing environment and applying Terraform changes..."
+#	@source ./env && terraform apply -auto-approve
 
-# Default target
-help:
-	@echo "Available targets:"
-	@echo "  init  - Initialize Terraform"
-	@echo "  plan  - Plan Terraform changes"
-	@echo "  apply - Apply Terraform changes"
 
 init:
-	@echo "Sourcing environment and initializing Terraform..."
-	@source ./env && terraform init
+	@terragrunt run --all --non-interactive init -- -upgrade
 
-plan:
-	@echo "Sourcing environment and planning Terraform changes..."
-	@source ./env && terraform plan
+plan: init
+	@terragrunt run --all --parallelism 4 --non-interactive plan
 
-apply:
-	@echo "Sourcing environment and applying Terraform changes..."
-	@source ./env && terraform apply -auto-approve
+apply: init
+	@terragrunt run --all --parallelism 2 --non-interactive apply
+
+format:
+	@echo "Formatting Terraform files..."
+	@terraform fmt -recursive .
+	@echo "Formatting Terragrunt files..."
+	@terragrunt hcl fmt