Switch to CPX42 in Nuremberg (CX53 unavailable)

[cmyui]

Summary

CX53 is sold out globally across all Hetzner datacenters. Switch to CPX42 in Nuremberg:

• 8 vCPU, 16GB RAM, 320GB NVMe — €21.99/mo
• MySQL buffer pool adjusted from 20GB to 8GB for 16GB RAM system

Test plan

• Verify plan output shows server type change + location change
• Confirm CPX42 is available in nbg1

🤖 Generated with Claude Code

[github-actions]

Terraform Plan Output

Click to expand

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  + create

Terraform will perform the following actions:

  # hcloud_server.production will be created
  + resource "hcloud_server" "production" {
      + allow_deprecated_images    = false
      + backup_window              = (known after apply)
      + backups                    = false
      + datacenter                 = (known after apply)
      + delete_protection          = false
      + firewall_ids               = [
          + 10658414,
        ]
      + id                         = (known after apply)
      + ignore_remote_firewall_ids = false
      + image                      = "ubuntu-24.04"
      + ipv4_address               = (known after apply)
      + ipv6_address               = (known after apply)
      + ipv6_network               = (known after apply)
      + keep_disk                  = false
      + labels                     = {
          + "environment" = "production"
          + "project"     = "akatsuki"
        }
      + location                   = "nbg1"
      + name                       = "akatsuki-production"
      + primary_disk_size          = (known after apply)
      + rebuild_protection         = false
      + server_type                = "cpx42"
      + shutdown_before_deletion   = false
      + ssh_keys                   = [
          + "108711081",
        ]
      + status                     = (known after apply)
    }

Plan: 1 to add, 0 to change, 0 to destroy.

Changes to Outputs:
  + server_ip     = (known after apply)
  + server_status = (known after apply)