Vereinfacht: sync country with finance contact API

docs/vereinfacht-api.md

@@ -25,7 +25,7 @@ When creating an external finance contact, the API only requires:
 - **Attributes:** `contactType` (e.g. `"person"`), `isExternal: true`
 - **Relationship:** `club` (club ID from config)
 
-Additional attributes (firstName, lastName, email, address, zipCode, city) are optional and are sent when present on the member so the contact is filled in. The app does **not** enforce extra required member fields for Vereinfacht; only Settings-based required fields and email apply.
+Additional attributes (firstName, lastName, email, address, zipCode, city, country) are optional and are sent when present on the member so the contact is filled in. The app does **not** enforce extra required member fields for Vereinfacht; only Settings-based required fields and email apply.
 
 - **Client:** `Mv.Vereinfacht.Client.create_contact/1` builds the JSON:API body from the member; `Mv.Constants.vereinfacht_required_member_fields/0` is an empty list.
 

lib/mv/vereinfacht/changes/sync_contact.ex

@@ -9,7 +9,7 @@ defmodule Mv.Vereinfacht.Changes.SyncContact do
   (Mv.Config.vereinfacht_configured?/0).
 
   Only runs when relevant data changed: on create always; on update only when
-  first_name, last_name, email, street, house_number, postal_code, or city changed,
+  first_name, last_name, email, street, house_number, postal_code, city, or country changed,
   or when the member has no vereinfacht_contact_id yet (to avoid unnecessary API calls).
   """
   use Ash.Resource.Change
@@ -26,7 +26,8 @@ defmodule Mv.Vereinfacht.Changes.SyncContact do
     :street,
     :house_number,
     :postal_code,
-    :city
+    :city,
+    :country
   ]
 
   @impl true

lib/mv/vereinfacht/client.ex

@@ -345,6 +345,7 @@ defmodule Mv.Vereinfacht.Client do
     |> put_attr("address", address)
     |> put_attr("zipCode", member |> Map.get(:postal_code))
     |> put_attr("city", member |> Map.get(:city))
+    |> put_attr("country", member |> Map.get(:country))
     |> Map.put("contactType", "person")
     |> Map.put("isExternal", true)
     |> Enum.reject(fn {_k, v} -> is_nil(v) end)