feat: adds member visibility to live view

lib/mv_web/live/member_live/index.ex

@@ -61,6 +61,8 @@ defmodule MvWeb.MemberLive.Index do
       |> assign_new(:sort_order, fn -> :asc end)
       |> assign(:selected_members, MapSet.new())
       |> assign(:custom_fields_visible, custom_fields_visible)
+      |> assign(:member_field_configurations, get_member_field_configurations())
+      |> assign(:member_fields_visible, get_visible_member_fields())
 
     # We call handle params to use the query from the URL
     {:ok, socket}
@@ -796,4 +798,39 @@ defmodule MvWeb.MemberLive.Index do
       "#{name} <#{member.email}>"
     end
   end
+
+  # Gets the configuration for all member fields with their show_in_overview values.
+  #
+  # Reads the visibility configuration from Settings and returns a map with all member fields
+  # and their show_in_overview values (true or false). Fields not configured in settings
+  # default to true.
+  #
+  # Returns a map: %{field_name => show_in_overview}
+  #
+  # This can be used for:
+  # - Rendering the overview (filtering visible fields)
+  # - UI configuration dropdowns (showing all fields with their current state)
+  # - Dynamic field management
+  #
+  # Fields are read from the global Constants module.
+  defp get_member_field_configurations do
+    # Get all eligible fields from the global constants
+    all_fields = Mv.Constants.member_fields()
+
+    Enum.reduce(all_fields, %{}, fn field, acc ->
+      show_in_overview = Mv.Membership.Member.show_in_overview?(field)
+      Map.put(acc, field, show_in_overview)
+    end)
+  end
+
+  # Gets the list of member fields that should be visible in the overview.
+  #
+  # Filters the member field configurations to return only fields with show_in_overview: true.
+  #
+  # Returns a list of atoms representing visible member field names.
+  defp get_visible_member_fields do
+    get_member_field_configurations()
+    |> Enum.filter(fn {_field, show_in_overview} -> show_in_overview end)
+    |> Enum.map(fn {field, _show_in_overview} -> field end)
+  end
 end