Add debug logging for WiFi interface detection

- Log all hostapd interfaces found
- Log iw dev output
- Log SSID found per interface
- Log WiFi client query results
- Match ANY wlan interface (not just wlan0-1/2)

usr/sbin/client2server-luv.lua

@@ -128,6 +128,7 @@ local function get_hostapd_interfaces()
         end
         f:close()
     end
+    log_info("hostapd interfaces: " .. table.concat(interfaces, ", "))
     return interfaces
 end
 
@@ -157,13 +158,16 @@ local function get_all_ssids()
         local result = f:read("*a")
         f:close()
         local current_iface = nil
+        log_info("iw dev output: " .. result:sub(1, 200))
         for line in result:gmatch("[^\n]+") do
-            local iface = line:match("Interface%s+(wlan%d-%d)")
+            -- Match ANY wlan interface (wlan0, wlan0-1, wlan1, etc.)
+            local iface = line:match("Interface%s+(wlan%d[^%s]*)")
             if iface then current_iface = iface end
             local ssid = line:match("ssid%s+(.+)")
             if ssid and current_iface then
                 local hostapd_iface = "hostapd." .. current_iface
                 ssids[hostapd_iface] = { enabled = true, ssid = ssid }
+                log_info("SSID found: " .. ssid .. " on " .. hostapd_iface)
             end
         end
     end
@@ -181,10 +185,12 @@ local function get_wifi_clients()
     
     local count = 0
     for _, iface in ipairs(interfaces) do
+        log_info("Querying WiFi clients on: " .. iface)
         local f = io.popen("ubus call " .. iface .. " get_clients 2>/dev/null")
         if f then
             local result = f:read("*a")
             f:close()
+            log_info(iface .. " clients result: " .. result:sub(1, 200))
             if result:find('"clients"') and not result:find('"clients":%s*{}') then
                 local mac_count = 0
                 for mac in result:gmatch('([a-fA-F0-9][a-fA-F0-9]:[a-fA-F0-9][a-fA-F0-9]:[a-fA-F0-9][a-fA-F0-9]:[a-fA-F0-9][a-fA-F0-9]:[a-fA-F0-9][a-fA-F0-9]:[a-fA-F0-9][a-fA-F0-9])') do
@@ -197,6 +203,7 @@ local function get_wifi_clients()
             end
         end
     end
+    log_info("Total WiFi clients found: " .. count)
     return clients
 end