fix: corrigir tipos de servidor AMD (CPX→CX), autoscaler, stdin e cleanup

- Corrigir tipos Hetzner: CPX não existe, usar CX (Intel shared vCPU)
  - CX23 (2 vCPU, 4GB) equivalente ao CAX11
  - CX33 (4 vCPU, 8GB) equivalente ao CAX21
  - CX43 (8 vCPU, 16GB) equivalente ao CAX31
- Corrigir location no autoscaler para amd64 (nbg1→fsn1)
- Remover gitlab-pool do autoscaler (substituído pelo Gitea)
- Aumentar worker-pool max para 30
- Corrigir Floating IP e Load Balancer hardcoded em nbg1
- Corrigir stdin em read interativo: usar < /dev/tty e read -p
- Corrigir cleanup de namespace: lidar com Terminating e finalizers
- Corrigir CNPG: nome do deployment, secret e endpointURL duplo
- Aulas afetadas: 08, 09, 10, 11, 12, 14, 17

aula-08/main.tf

@@ -38,14 +38,14 @@ locals {
   # Endpoint: LoadBalancer IP if enabled, otherwise Floating IP
   cluster_endpoint_ip = var.enable_loadbalancer ? hcloud_load_balancer.cluster[0].ipv4 : hcloud_floating_ip.control_plane[0].ip_address
 
-  # Arquitetura: mapeia arm64→CAX (Nuremberg) ou amd64→CPX (Frankfurt)
+  # Arquitetura: mapeia arm64→CAX (Nuremberg) ou amd64→CX (Frankfurt)
   arch_config = {
     arm64 = {
       server_type_cp = "cax11"
       location       = "nbg1"
     }
     amd64 = {
-      server_type_cp = "cpx21"
+      server_type_cp = "cx23"
       location       = "fsn1"
     }
   }
@@ -247,7 +247,7 @@ resource "hcloud_floating_ip" "control_plane" {
   count         = var.enable_loadbalancer ? 0 : 1
   type          = "ipv4"
   name          = "${local.cluster_name}-cp-ip"
-  home_location = "nbg1"
+  home_location = local.selected_arch.location
   labels        = local.common_labels
 }
 
@@ -265,7 +265,7 @@ resource "hcloud_load_balancer" "cluster" {
   count              = var.enable_loadbalancer ? 1 : 0
   name               = "${local.cluster_name}-lb"
   load_balancer_type = "lb11"
-  location           = "nbg1"
+  location           = local.selected_arch.location
   labels             = local.common_labels
 }