feat: Datafields page, merge fee types into membership_fee_settings, sidebar

- Add /admin/datafields (DatafieldsLive) for member and custom field config
- Remove Memberdata block from GlobalSettingsLive
- Router: drop /membership_fee_types, add new_fee_type and edit_fee_type under membership_fee_settings
- MembershipFeeSettingsLive: fee types table, collapsible examples; Index links updated
- PagePaths: admin_datafields, admin_import; remove membership_fee_types
- Sidebar: order and labels (Basic settings, Datafields, Membership fee settings, Import, Users, Roles)
- Gettext: German translations for sidebar and OIDC
- Tests: datafields and fee routes, permission and form tests updated

test/mv/oidc_role_sync_test.exs

@@ -12,14 +12,14 @@ defmodule Mv.OidcRoleSyncTest do
 
   setup do
     ensure_roles_exist()
-    restore_config = put_oidc_config(admin_group_name: "mila-admin", groups_claim: "groups")
+    restore_config = put_oidc_env(admin_group_name: "mila-admin", groups_claim: "groups")
     on_exit(restore_config)
     :ok
   end
 
   describe "apply_admin_role_from_user_info/2" do
     test "when OIDC_ADMIN_GROUP_NAME not configured: does not change user (Mitglied stays)" do
-      restore = put_oidc_config(admin_group_name: nil, groups_claim: "groups")
+      restore = put_oidc_env(admin_group_name: nil, groups_claim: "groups")
       on_exit(restore)
 
       email = "sync-no-config-#{System.unique_integer([:positive])}@test.example.com"
@@ -58,7 +58,7 @@ defmodule Mv.OidcRoleSyncTest do
     end
 
     test "when OIDC_GROUPS_CLAIM is different: reads groups from that claim" do
-      restore = put_oidc_config(admin_group_name: "mila-admin", groups_claim: "ak_groups")
+      restore = put_oidc_env(admin_group_name: "mila-admin", groups_claim: "ak_groups")
       on_exit(restore)
 
       email = "sync-claim-#{System.unique_integer([:positive])}@test.example.com"
@@ -131,13 +131,30 @@ defmodule Mv.OidcRoleSyncTest do
     end
   end
 
-  defp put_oidc_config(opts) do
-    current = Application.get_env(:mv, :oidc_role_sync, [])
-    merged = Keyword.merge(current, opts)
-    Application.put_env(:mv, :oidc_role_sync, merged)
+  defp put_oidc_env(opts) do
+    prev_admin = System.get_env("OIDC_ADMIN_GROUP_NAME")
+    prev_claim = System.get_env("OIDC_GROUPS_CLAIM")
+
+    if opts[:admin_group_name] != nil do
+      System.put_env("OIDC_ADMIN_GROUP_NAME", to_string(opts[:admin_group_name]))
+    else
+      System.delete_env("OIDC_ADMIN_GROUP_NAME")
+    end
+
+    if opts[:groups_claim] != nil do
+      System.put_env("OIDC_GROUPS_CLAIM", to_string(opts[:groups_claim]))
+    else
+      System.delete_env("OIDC_GROUPS_CLAIM")
+    end
 
     fn ->
-      Application.put_env(:mv, :oidc_role_sync, current)
+      if prev_admin,
+        do: System.put_env("OIDC_ADMIN_GROUP_NAME", prev_admin),
+        else: System.delete_env("OIDC_ADMIN_GROUP_NAME")
+
+      if prev_claim,
+        do: System.put_env("OIDC_GROUPS_CLAIM", prev_claim),
+        else: System.delete_env("OIDC_GROUPS_CLAIM")
     end
   end