fix: add modem type and channel diagnostics to bridge startup

inventoryWebBridge.lua

@@ -406,7 +406,10 @@ local function main()
     if modem then
         WebBridge.openChannels(modem,
             { 'inventory.broadcast', 'inventory.bridge' })
-        print("[OK]   Modem: " .. modemName)
+        local modemType = modem.isWireless and (modem.isWireless() and "wireless" or "wired") or "unknown"
+        print(string.format("[OK]   Modem: %s (%s)", modemName, modemType))
+        print(string.format("[OK]   TX ch %d, listen ch %d/%d",
+            ORDER_CHANNEL, BROADCAST_CHANNEL, BRIDGE_REPLY_CHANNEL))
     else
         print("[WARN] No modem found! Bridge needs a modem.")
         print("       Attach a modem and restart.")