return SAN notation of last move

lib/chesstrainer_web/live/chess_test_live.ex

@@ -3,7 +3,7 @@ defmodule ChesstrainerWeb.ChessTestLive do
 
   @impl true
   def mount(_params, _session, socket) do
-    {:ok, assign(socket, last_move: "None yet", total_moves: 0)}
+    {:ok, assign(socket, last_move: "None yet", total_moves: 0, san: "None yet")}
   end
 
   @impl true
@@ -16,6 +16,7 @@ defmodule ChesstrainerWeb.ChessTestLive do
         <div>
           <p class="text-sm text-gray-600 font-semibold">Last Played Move:</p>
           <p class="text-lg font-mono text-blue-600">{@last_move}</p>
+          <p class="text-lg font-mono text-blue-600">{@san}</p>
         </div>
         <div>
           <p class="text-sm text-gray-600 font-semibold">Total Moves:</p>
@@ -37,11 +38,15 @@ defmodule ChesstrainerWeb.ChessTestLive do
   end
 
   @impl true
-  def handle_event("move_played", %{"from" => from, "to" => to, "fen" => _fen}, socket) do
-    # Receive the payload sent from the client JS Hook via this.pushEvent
+  def handle_event(
+        "move_played",
+        %{"from" => from, "to" => to, "fen" => _fen, "san" => san},
+        socket
+      ) do
     {:noreply,
      socket
      |> assign(:last_move, "#{from} ➔ #{to}")
+     |> assign(:san, san)
      |> assign(:total_moves, socket.assigns.total_moves + 1)}
   end
 end