Remove redundant incus_ prefix from root module variables

Rename variables to remove the useless incus_ prefix:
- incus_hypervisors → hypervisors
- incus_witnesses → witnesses
- incus_token → token
- incus_networks → networks
- incus_storage_pools → storage_pools

Updates all references across provider.tf, groups.tf, network.tf,
storage.tf, and .auto.tfvars files.

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

incus/groups.tf

@@ -4,7 +4,7 @@ resource "incus_cluster_group" "default" {
 }
 
 resource "incus_cluster_group_member" "hypervisor" {
-  for_each      = var.incus_hypervisors
+  for_each      = var.hypervisors
   cluster_group = incus_cluster_group.default.name
   member        = each.key
 }
@@ -15,7 +15,7 @@ resource "incus_cluster_group" "witness" {
 }
 
 resource "incus_cluster_group_member" "witness" {
-  for_each      = var.incus_witnesses
+  for_each      = var.witnesses
   cluster_group = incus_cluster_group.witness.name
   member        = each.key
 }

incus/members.auto.tfvars

@@ -1,10 +1,10 @@
-incus_hypervisors = {
+hypervisors = {
   "hv-01" = "https://192.168.0.11:8443"
   "hv-02" = "https://192.168.0.12:8443"
 }
 
-incus_witnesses = {
+witnesses = {
   "nuc" = "https://192.168.0.10:8443"
 }
 
-incus_token = "eyJjbGllbnRfbmFtZSI6InRmIiwiZmluZ2VycHJpbnQiOiIxYjNmZGJmNTNlZTdlODc4NDllY2RiNTkyYzNkYTRkYmE0M2I3Mjg1OTFlYTAxYmE1NTNkZGRmYzJjNTBjNWMzIiwiYWRkcmVzc2VzIjpbIjE5Mi4xNjguMC4xMTo4NDQzIl0sInNlY3JldCI6IjAzNzFmMTdjMDc1OGU2ZmU5ZGJjNTkwZmNhYTAzOTllYWJkMDY3N2E4ODIzMGY1ZjkyYzdlNjNlYmMyYmU0NDQiLCJleHBpcmVzX2F0IjoiMDAwMS0wMS0wMVQwMDowMDowMFoifQ==" 
+token ="eyJjbGllbnRfbmFtZSI6InRmIiwiZmluZ2VycHJpbnQiOiIxYjNmZGJmNTNlZTdlODc4NDllY2RiNTkyYzNkYTRkYmE0M2I3Mjg1OTFlYTAxYmE1NTNkZGRmYzJjNTBjNWMzIiwiYWRkcmVzc2VzIjpbIjE5Mi4xNjguMC4xMTo4NDQzIl0sInNlY3JldCI6IjAzNzFmMTdjMDc1OGU2ZmU5ZGJjNTkwZmNhYTAzOTllYWJkMDY3N2E4ODIzMGY1ZjkyYzdlNjNlYmMyYmU0NDQiLCJleHBpcmVzX2F0IjoiMDAwMS0wMS0wMVQwMDowMDowMFoifQ==" 

incus/network.auto.tfvars

@@ -1,4 +1,4 @@
-incus_networks = {
+networks = {
   "main" = {
     type = "physical"
     hypervisor_config = {

incus/network.tf

@@ -1,10 +1,10 @@
 module "network" {
   source            = "./modules/network"
-  for_each          = var.incus_networks
+  for_each          = var.networks
   name              = each.key
   type              = each.value.type
-  hypervisors       = toset(keys(var.incus_hypervisors))
-  witnesses         = toset(keys(var.incus_witnesses))
+  hypervisors       = toset(keys(var.hypervisors))
+  witnesses         = toset(keys(var.witnesses))
   hypervisor_config = each.value.hypervisor_config
   witness_config    = each.value.witness_config
 }

incus/provider.tf

@@ -9,14 +9,14 @@ terraform {
 provider "incus" {
   generate_client_certificates = true
   accept_remote_certificate    = true
-  default_remote               = keys(var.incus_hypervisors)[0]
+  default_remote               = keys(var.hypervisors)[0]
 
   dynamic "remote" {
-    for_each = var.incus_hypervisors
+    for_each = var.hypervisors
     content {
       name    = remote.key
       address = remote.value
-      token   = var.incus_token
+      token   = var.token
     }
   }
 }

incus/storage.auto.tfvars

@@ -1,4 +1,4 @@
-incus_storage_pools = {
+storage_pools = {
   "san" = {
     driver            = "lvmcluster"
     hypervisor_config = { "lvm.vg_name" = "nucVG" }

incus/storage.tf

@@ -1,10 +1,10 @@
 module "storage" {
   source            = "./modules/storage"
-  for_each          = var.incus_storage_pools
+  for_each          = var.storage_pools
   name              = each.key
   driver            = each.value.driver
-  hypervisors       = toset(keys(var.incus_hypervisors))
-  witnesses         = toset(keys(var.incus_witnesses))
+  hypervisors       = toset(keys(var.hypervisors))
+  witnesses         = toset(keys(var.witnesses))
   hypervisor_config = each.value.hypervisor_config
   witness_config    = each.value.witness_config
 }

incus/variables.tf

@@ -1,18 +1,18 @@
-variable "incus_hypervisors" {
+variable "hypervisors" {
   type = map(string)
 }
 
-variable "incus_witnesses" {
+variable "witnesses" {
   type = map(string)
 }
 
-variable "incus_token" {
+variable "token" {
   type      = string
   sensitive = true
   description = "The common authentication token for all Incus remotes"
 }
 
-variable "incus_networks" {
+variable "networks" {
   type = map(object({
     type              = string
     hypervisor_config = map(string)
@@ -20,7 +20,7 @@ variable "incus_networks" {
   }))
 }
 
-variable "incus_storage_pools" {
+variable "storage_pools" {
   type = map(object({
     driver            = string
     hypervisor_config = map(string)