style: update OTA version indicators to lime/yellow/red and output errors to CC terminal

ticketmachine.lua

@@ -661,17 +661,14 @@ local lastUpdateError = nil
 
 local function drawVersionIndicator()
   if w < 1 then return end
-  local markerColor = colors.yellow
+  local markerColor = colors.lime
   local markerText = '*   '
   if isUpdating then
     markerColor = colors.yellow
     markerText = '^ing'
-  elseif versionMismatch == true then
+  elseif lastUpdateError then
     markerColor = colors.red
     markerText = '*   '
-  elseif versionMismatch == false then
-    markerColor = colors.lime
-    markerText = '    '
   end
   termDev.setBackgroundColor(colors.black)
   termDev.setTextColor(colors.gray)
@@ -720,18 +717,27 @@ local function checkAndApplyUpdate()
     local ok, res = pcall(fn, "--silent")
     if not ok then
       lastUpdateError = string.sub(tostring(res), 1, 30)
+      if term and term.setTextColor then
+        term.setTextColor(colors.red)
+        print("OTA Update Error: " .. tostring(res))
+        term.setTextColor(colors.white)
+      end
     end
   else
     lastUpdateError = "loadfile failed: " .. tostring(err)
+    if term and term.setTextColor then
+      term.setTextColor(colors.red)
+      print("OTA Update Error: " .. tostring(err))
+      term.setTextColor(colors.white)
+    end
   end
   
   isUpdating = false
   pcall(drawVersionIndicator)
   
-  if lastUpdateError then
-    sleep(3)
+  if not lastUpdateError then
+    os.reboot()
   end
-  os.reboot()
 end
 
 local function backgroundSyncTask()