chore: updated monaco and tools to update monaco

lib/mix/tasks/monaco.version.ex

@@ -0,0 +1,41 @@
+defmodule Mix.Tasks.Monaco.Version do
+  @shortdoc "Show current monaco-editor version"
+
+  @moduledoc """
+  Show the currently installed monaco-editor version.
+
+      mix monaco.version
+
+  Reads the version from package-lock.json. The Monaco bundle lives at
+  `priv/static/assets/monaco.js` and is built via `mix esbuild monaco`.
+  """
+
+  use Mix.Task
+
+  @impl Mix.Task
+  def run(_args) do
+    lock = Path.join(File.cwd!(), "package-lock.json")
+
+    case File.read(lock) do
+      {:ok, content} ->
+        data = Jason.decode!(content)
+
+        version =
+          case Map.get(Map.get(data, "packages", %{}), "node_modules/monaco-editor") do
+            %{"version" => v} -> v
+            _ -> nil
+          end
+
+        case version do
+          v when is_binary(v) -> Mix.shell().info("monaco-editor: #{v}")
+          nil ->
+            Mix.shell().error("Could not find monaco-editor in package-lock.json")
+            System.at_exit(fn _ -> System.halt(1) end)
+        end
+
+      {:error, reason} ->
+        Mix.shell().error("package-lock.json not found: #{reason}")
+        System.at_exit(fn _ -> System.halt(1) end)
+    end
+  end
+end