feat: comprehensive project structure improvements and Cloud for Sovereignty landing zone

- Add Cloud for Sovereignty landing zone architecture and deployment
- Implement complete legal document management system
- Reorganize documentation with improved navigation
- Add infrastructure improvements (Dockerfiles, K8s, monitoring)
- Add operational improvements (graceful shutdown, rate limiting, caching)
- Create comprehensive project structure documentation
- Add Azure deployment automation scripts
- Improve repository navigation and organization

infra/terraform/variables.tf

@@ -40,6 +40,74 @@ variable "domain_name" {
   default     = ""
 }
 
+variable "subscription_id" {
+  description = "Azure subscription ID"
+  type        = string
+  default     = ""
+  sensitive   = true
+}
+
+variable "tenant_id" {
+  description = "Azure tenant ID"
+  type        = string
+  default     = ""
+  sensitive   = true
+}
+
+variable "client_id" {
+  description = "Azure service principal client ID (optional, uses Azure CLI auth if not set)"
+  type        = string
+  default     = ""
+  sensitive   = true
+}
+
+variable "client_secret" {
+  description = "Azure service principal client secret (optional, uses Azure CLI auth if not set)"
+  type        = string
+  default     = ""
+  sensitive   = true
+}
+
+variable "resource_group_name" {
+  description = "Azure resource group name"
+  type        = string
+  default     = ""
+}
+
+variable "storage_account_name" {
+  description = "Azure storage account name (must be globally unique)"
+  type        = string
+  default     = ""
+}
+
+variable "key_vault_name" {
+  description = "Azure Key Vault name (must be globally unique)"
+  type        = string
+  default     = ""
+}
+
+variable "tags" {
+  description = "Tags to apply to all resources"
+  type        = map(string)
+  default = {
+    Environment = "dev"
+    Project     = "the-order"
+    ManagedBy   = "terraform"
+  }
+}
+
+variable "cdn_profile_name" {
+  description = "Azure CDN profile name"
+  type        = string
+  default     = ""
+}
+
+variable "cdn_endpoint_name" {
+  description = "Azure CDN endpoint name"
+  type        = string
+  default     = ""
+}
+
 variable "enable_monitoring" {
   description = "Enable monitoring and observability"
   type        = bool