fix: issue #20 cmd-J panel tab strip visibility and output panel parity

lib/bds/desktop/shell_live/notify.ex

@@ -20,6 +20,17 @@ defmodule BDS.Desktop.ShellLive.Notify do
     :ok
   end
 
+  @doc """
+  Sends an output entry to a specific LiveView process. Needed when the
+  caller runs in a different process than the shell — e.g. script output
+  callbacks invoked inside the sandboxed script process.
+  """
+  @spec output_to(pid(), String.t(), String.t(), String.t() | nil, String.t()) :: :ok
+  def output_to(pid, title, message, detail, level) when is_pid(pid) do
+    send(pid, {:editor_output, title, message, detail, level})
+    :ok
+  end
+
   @spec alert(String.t(), String.t()) :: :ok
   def alert(title, message) do
     send(self(), {:shell_alert, title, message})