feat(BCN01-LAB): puerto AP trunk y VLAN 111 WAN sin L3

- Puerto 3 eqt-lab-st01-sw01: trunk, native 108 (APs), tagged 100+101
- VLAN 111 WAN sin subnet ni appliance_ip (switching puro)
- subnet/appliance_ip pasan a ser opcionales en el módulo

sites/BCN01-LAB/switch.auto.tfvars

@@ -144,6 +144,16 @@ switch_named_port_configs = [
     vlan               = 110  # SERVERS
     access_policy_type = "Open"
   },
+  {
+    # Puerto 3 de eqt-lab-st01-sw01 → AP (trunk, nativa 108 APs, tageadas 100 ACCESS y 101 GUEST)
+    switch_name        = "eqt-lab-st01-sw01"
+    port_range         = "3"
+    name               = "AP"
+    type               = "trunk"
+    vlan               = 108          # APs - VLAN nativa (untagged)
+    allowed_vlans      = "100,101,108" # ACCESS + GUEST + APs
+    access_policy_type = "Open"
+  },
 ]
 
 # VLAN de gestión de los switches del site

sites/BCN01-LAB/variables.tf

@@ -34,6 +34,7 @@ variable "wireless_ssids" {
     name                = string
     enabled             = optional(bool, true)
     auth_mode           = string
+    psk                 = optional(string, null)
     splash_page         = optional(string, "None")
     wpa_encryption_mode = optional(string, "WPA3 only")
     ip_assignment_mode  = optional(string, "Bridge mode")
@@ -61,8 +62,8 @@ variable "radius_secret" {
 variable "switch_vlans" {
   type = map(object({
     name          = string
-    subnet        = string
-    appliance_ip  = string
+    subnet        = optional(string, null)
+    appliance_ip  = optional(string, null)
     dhcp_handling = optional(string, "Run a DHCP server")
     reserved_ip_ranges = optional(list(object({
       comment = string

sites/BCN01-LAB/vlans.auto.tfvars

@@ -89,4 +89,9 @@ switch_vlans = {
     appliance_ip  = "10.2.56.1"
     dhcp_handling = "Do not respond to DHCP requests"
   }
+  "111" = {
+    name          = "WAN"
+    dhcp_handling = "Do not respond to DHCP requests"
+    # Sin L3: sin subnet ni appliance_ip (VLAN de switching puro hacia el ISP)
+  }
 }