feat(BCN01-LAB): sync manual Dashboard changes to Terraform

- Management VLAN switches → 109
- Puerto 47 stack: trunk, native VLAN 109
- SVI stack bcn01-lab-stack01: VLAN 109, 10.2.55.2/24, GW 10.2.55.1
- MX puerto 7: trunk, native VLAN 109
- Firewall: allow MANAGEMENT → internet (primera regla)
- Puerto 1 eqt-lab-st01-sw01: VLAN 110 (SERVERS)

sites/BCN01-LAB/appliance.auto.tfvars

@@ -0,0 +1,15 @@
+# Configuración de puertos LAN del firewall MX
+# port_id: número del puerto físico en el MX
+# type:    "trunk" o "access"
+# vlan:    VLAN nativa (untagged) en trunk, o VLAN de acceso en access
+appliance_ports = [
+  {
+    # Puerto 7: trunk hacia el stack de switches
+    # VLAN nativa 109 (MANAGEMENT), permite todas las VLANs
+    port_id       = "7"
+    enabled       = true
+    type          = "trunk"
+    vlan          = 109   # MANAGEMENT - VLAN nativa (untagged)
+    allowed_vlans = "all"
+  },
+]