Remove all CPU limits cluster-wide to eliminate CFS throttling

CPU limits cause CFS throttling even when nodes have idle capacity.
Move to a request-only CPU model: keep CPU requests for scheduling
fairness but remove all CPU limits. Memory limits stay (incompressible).

Changes across 108 files:
- Kyverno LimitRange policy: remove cpu from default/max in all 6 tiers
- Kyverno ResourceQuota policy: remove limits.cpu from all 5 tiers
- Custom ResourceQuotas: remove limits.cpu from 8 namespace quotas
- Custom LimitRanges: remove cpu from default/max (nextcloud, onlyoffice)
- RBAC module: remove cpu_limits variable and quota reference
- Freedify factory: remove cpu_limit variable and limits reference
- 86 deployment files: remove cpu from all limits blocks
- 6 Helm values files: remove cpu under limits sections

stacks/infra/main.tf

@@ -10,8 +10,8 @@
 variable "proxmox_host" { type = string }
 
 variable "ssh_private_key" {
-  type    = string
-  default = ""
+  type      = string
+  default   = ""
   sensitive = true
 }
 
@@ -21,7 +21,7 @@ variable "ssh_public_key" {
 }
 
 variable "vm_wizard_password" {
-  type = string
+  type      = string
   sensitive = true
 }