Refactor mktempdir function implementation

Refactor mktempdir to use explicit tuple match for clarity.

Author: lowks

lib/Radpath/tempfs.ex

@@ -85,7 +85,10 @@ defmodule Radpath.Tempfs do
 
     @spec mktempdir(bitstring) :: none
     def mktempdir(path \\ "/tmp") when is_bitstring(path) do
-      Temp.mkdir(%{basedir: path}) |> tap({_, path_name} ~> path_name)
+       ## Temp.mkdir(%{basedir: path}) |> tap({_, path_name} ~> path_name)
+      Temp.mkdir(%{basedir: path})
+         |> tap(fn {:ok, path_name} -> path_name end) # Explicit tuple match
+
     end
 
   end