refactor: replace hardcoded status channel ID with dynamic retrieval from platform.channels

pocketgps.lua

@@ -1,7 +1,10 @@
 -- Live GPS Tracker for Pocket Computer
 -- Shows your current location in real-time
 
-local STATUS_CHANNEL = 102
+local Channels  = require('platform.channels')
+local WebBridge = require('platform.webbridge')
+
+local STATUS_CHANNEL = Channels.get('remoteturtle.status')
 
 -- Setup modem
 local modem = peripheral.find("modem")
@@ -15,7 +18,7 @@ if pocket then
     modem = peripheral.find("modem")
 end
 
-modem.open(STATUS_CHANNEL)
+WebBridge.openChannels(modem, { 'remoteturtle.status' })
 
 local w, h = term.getSize()
 local myID = os.getComputerID()