refactor: rename site bcn01 to BCN01-LAB

- Rename sites/bcn01/ -> sites/BCN01-LAB/
- Update S3 backend key: bcn01/terraform.tfstate -> BCN01-LAB/terraform.tfstate
- Rename Terraform module: bcn01 -> bcn01_lab
- Update working-directory in apply.yml and plan.yml
- Update job/step names to BCN01-LAB

NOTA: mover manualmente en S3 el objeto
  bcn01/terraform.tfstate  ->  BCN01-LAB/terraform.tfstate
antes de hacer terraform init en el nuevo directorio.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

sites/BCN01-LAB/ssids.auto.tfvars

@@ -0,0 +1,23 @@
+# SSIDs wireless - BCN01
+# NOTA: El shared secret de RADIUS NO está aquí.
+# Se pasa como variable de entorno TF_VAR_radius_secret (GitHub secret: RADIUS_SECRET)
+
+wireless_ssids = [
+  {
+    number              = 0
+    name                = "EQT-CORPO"
+    enabled             = true
+    auth_mode           = "open"
+    splash_page         = "Password-protected with custom RADIUS"
+    ip_assignment_mode  = "Bridge mode"
+    use_vlan_tagging    = true
+    default_vlan_id     = 100
+    redirect_url        = "https://www.adevinta.com"
+    radius_servers = [
+      {
+        host = "15.15.15.15"
+        port = 1912
+      }
+    ]
+  }
+]