Implemented the usage of the standarised ui library.

- Updated the turtle status check logic to use ctx.craftTurtleOk for determining if the crafting turtle is available.
- Adjusted the logic to fall back on checking ctx.craftTurtleName and its peripheral presence if ctx.craftTurtleOk is not set.

manager/display.lua

@@ -958,8 +958,9 @@ local function buildSmelterPage()
                 turtleStatus = UI.Window {
                     x = -14, y = 0, width = 14, height = 1,
                     draw = function(self)
-                        local turtleOk = ctx.craftTurtleName
-                            and peripheral.isPresent(ctx.craftTurtleName)
+                        local turtleOk = ctx.craftTurtleOk
+                            or (ctx.craftTurtleName
+                                and peripheral.isPresent(ctx.craftTurtleName))
                         local label = turtleOk and " Turtle OK " or " No Turtle "
                         local bg = turtleOk and colors.lime or colors.red
                         local fg = turtleOk and colors.black or colors.white
@@ -1140,8 +1141,9 @@ local function buildSmelterPage()
                     local recipeIdx = event.selected.idx
                     local recipe = cfg.CRAFTABLE[recipeIdx]
                     if recipe then
-                        local turtleOk = ctx.craftTurtleName
-                            and peripheral.isPresent(ctx.craftTurtleName)
+                        local turtleOk = ctx.craftTurtleOk
+                            or (ctx.craftTurtleName
+                                and peripheral.isPresent(ctx.craftTurtleName))
                         if not turtleOk then
                             self.notification:error("No crafting turtle!")
                             return true