- 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
- ConnCase: add :read_only and :normal_user role tags for tests.
- Add CheckPagePermission plug tests (unit + integration for member, read_only,
normal_user, admin). Update permission_sets_test (refute "/" for own_data).
- Profile navigation, global_settings, role_live, membership_fee_type: use
users with role for "/" access; expect redirect for own_data on /settings
and /admin/roles.
