fix: tab titles on ai chats on reload

lib/bds/desktop/shell_live/tab_helpers.ex

@@ -2,7 +2,7 @@ defmodule BDS.Desktop.ShellLive.TabHelpers do
   @moduledoc false
 
   alias BDS.Desktop.ShellData
-  alias BDS.{BoundedAtoms, Media, Posts}
+  alias BDS.{AI, BoundedAtoms, Media, Posts}
   alias BDS.Media.Media, as: MediaRecord
   alias BDS.Posts.Post
   alias BDS.UI.Registry
@@ -21,10 +21,12 @@ defmodule BDS.Desktop.ShellLive.TabHelpers do
   def tab_subtitle(tab, tab_meta) do
     case Map.get(tab_meta, {tab.type, tab.id}) do
       %{subtitle: subtitle} when is_binary(subtitle) and subtitle != "" -> subtitle
-      _other -> "Desktop workbench content routed through the Elixir shell."
+      _other -> default_tab_subtitle(tab)
     end
   end
 
+  def default_tab_title(%{type: :chat, id: conversation_id}), do: chat_title(conversation_id)
+
   def default_tab_title(%{type: type, id: id}) do
     case Registry.editor_route(type) do
       %{singleton: true} -> ShellData.route_label(type)
@@ -32,6 +34,9 @@ defmodule BDS.Desktop.ShellLive.TabHelpers do
     end
   end
 
+  defp default_tab_subtitle(%{type: :chat}), do: translated("AI conversations")
+  defp default_tab_subtitle(_tab), do: "Desktop workbench content routed through the Elixir shell."
+
   def tab_route_label(nil), do: translated("Dashboard")
   def tab_route_label(%{type: type}), do: ShellData.route_label(type)
 
@@ -88,6 +93,14 @@ defmodule BDS.Desktop.ShellLive.TabHelpers do
     end
   end
 
+  def chat_title(conversation_id) do
+    case AI.get_chat_conversation(conversation_id) do
+      %{title: title} when is_binary(title) and title != "" -> title
+      %{id: id} when is_binary(id) and id != "" -> id
+      _other -> "Chat"
+    end
+  end
+
   def parse_integer(value) when is_integer(value), do: value
 
   def parse_integer(value) do

test/bds/desktop/shell_live_test.exs

@@ -707,6 +707,27 @@ defmodule BDS.Desktop.ShellLiveTest do
     assert html =~ ~s(class="tab active transient")
   end
 
+  test "workbench session restore rehydrates chat tab titles from stored conversations" do
+    assert {:ok, conversation} = AI.start_chat(%{title: "Editorial Plan"})
+
+    {:ok, view, _html} = live_isolated(build_conn(), BDS.Desktop.ShellLive)
+
+    session_payload =
+      Workbench.new()
+      |> Workbench.open_tab(:chat, conversation.id, :pin)
+      |> Session.serialize()
+
+    _html = render_hook(view, "restore_workbench_session", %{"session" => session_payload})
+
+    assert has_element?(
+             view,
+             ".tab[data-tab-type='chat'][data-tab-id='#{conversation.id}'] .tab-title",
+             "Editorial Plan"
+           )
+
+    assert has_element?(view, ".chat-panel-title-main", "Editorial Plan")
+  end
+
   test "metadata diff refresh reruns after workbench session restore", %{project: project} do
     :ok = BDS.Tasks.clear_finished()