feix: optimize queries for groups

lib/mv_web/live/group_live/show.ex

@@ -38,7 +38,16 @@ defmodule MvWeb.GroupLive.Show do
   end
 
   defp load_group_by_slug(socket, slug, actor) do
-    case Membership.get_group_by_slug(slug, actor: actor, load: [:members, :member_count]) do
+    # Load group with members and member_count
+    # Using explicit load ensures efficient preloading of members relationship
+    require Ash.Query
+
+    query =
+      Mv.Membership.Group
+      |> Ash.Query.filter(slug == ^slug)
+      |> Ash.Query.load([:members, :member_count])
+
+    case Ash.read_one(query, actor: actor, domain: Mv.Membership) do
       {:ok, nil} ->
         {:noreply,
          socket