feat: Adresszusatz (Ortsteil/Etage/Hinweis) anzeigen, Land nur im Ausland

- Address.addition aus dem Backend (ERP-Freitext, praktisch Ortsteil,
  Etage oder Hinweis); API-Client neu generiert.
- Listen (Sortieren, Beladen, Liefer-Übersicht): Adresse mit Zusatz in
  Klammern, z. B. „… 41472 Neuss (Holzheim)".
- Lieferdetails: „Zusatz: …" unter der Anschrift von Empfänger und
  Besteller; Land nur außerhalb Deutschlands.
- Maps-Suche weiter ohne Zusatz (sonst stört „3 Etage" die Suche).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/data/mapper/tour_mapper.dart

@@ -31,6 +31,7 @@ extension ApiAddressMapper on api.Address {
         postalCode: postalCode,
         city: city,
         country: country,
+        addition: addition,
       );
 }
 

lib/data/repository/tour_repository_impl.dart

@@ -535,6 +535,7 @@ class TourRepositoryImpl implements TourRepository {
         postalCode: snap['postalCode'] as String,
         city: snap['city'] as String,
         country: snap['country'] as String,
+        addition: snap['addition'] as String?,
       ),
       erpBelegartId: (j['erpBelegartId'] as num).toInt(),
       erpBelegnummer: j['erpBelegnummer'] as String,

lib/domain/entity/address.dart

@@ -12,17 +12,44 @@ class Address {
     required this.postalCode,
     required this.city,
     required this.country,
+    this.addition,
   });
 
   final String street;
   final String houseNumber;
   final String postalCode;
   final String city;
+  /// Land laut ERP-Länderstamm (z. B. „Deutschland"), leer wenn unbekannt.
   final String country;
 
-  /// Einzeilige Darstellung für Listen/Header.
-  String get oneLine =>
-      '$street $houseNumber, $postalCode $city';
+  /// Freier Adresszusatz aus dem ERP — praktisch Ortsteil, Etage oder
+  /// Hinweis („Holzheim", „3 Etage", „Parterre"). `null`, wenn leer.
+  final String? addition;
+
+  static const Set<String> _germany = {
+    'd', 'de', 'deu', 'deutschland', 'germany', 'brd',
+  };
+
+  /// Land für die Anzeige — nur außerhalb Deutschlands, sonst `null`.
+  String? get foreignCountry {
+    final c = country.trim();
+    if (c.isEmpty || _germany.contains(c.toLowerCase())) return null;
+    return c;
+  }
+
+  /// Einzeilige Anschrift „Straße Nr, PLZ Ort" (+ Land, falls Ausland).
+  /// Ohne Zusatz — so auch als Such-Query für Maps geeignet.
+  String get oneLine => [
+        '$street $houseNumber, $postalCode $city',
+        if (foreignCountry case final c?) c,
+      ].join(', ');
+
+  /// Wie [oneLine], mit Adresszusatz in Klammern — für Listen, damit der
+  /// Fahrer Ortsteil/Etage auf einen Blick sieht.
+  String get oneLineWithAddition {
+    final a = addition?.trim();
+    return a == null || a.isEmpty ? oneLine : '$oneLine ($a)';
+  }
 
   Address copyWith({
     String? street,
@@ -30,6 +57,7 @@ class Address {
     String? postalCode,
     String? city,
     String? country,
+    String? addition,
   }) {
     return Address(
       street: street ?? this.street,
@@ -37,6 +65,7 @@ class Address {
       postalCode: postalCode ?? this.postalCode,
       city: city ?? this.city,
       country: country ?? this.country,
+      addition: addition ?? this.addition,
     );
   }
 
@@ -48,8 +77,10 @@ class Address {
           other.houseNumber == houseNumber &&
           other.postalCode == postalCode &&
           other.city == city &&
-          other.country == country;
+          other.country == country &&
+          other.addition == addition;
 
   @override
-  int get hashCode => Object.hash(street, houseNumber, postalCode, city, country);
+  int get hashCode =>
+      Object.hash(street, houseNumber, postalCode, city, country, addition);
 }

lib/feature/delivery/detail/presentation/steps/step_info.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:url_launcher/url_launcher.dart';
 
+import 'package:hl_lieferservice/domain/entity/address.dart';
 import 'package:hl_lieferservice/domain/entity/contact_source.dart';
 import 'package:hl_lieferservice/domain/entity/customer.dart';
 import 'package:hl_lieferservice/domain/entity/delivery.dart';
@@ -116,6 +117,23 @@ class _SectionHeader extends StatelessWidget {
   }
 }
 
+// ─── Adresse ────────────────────────────────────────────────────────────
+
+/// Zeilen unter „PLZ Ort": Land (nur Ausland) und Adresszusatz aus dem ERP
+/// (Ortsteil, Etage, Hinweis — für den Fahrer vor Ort wichtig).
+List<Widget> _addressExtras(Address address, {required double fontSize}) {
+  final addition = address.addition?.trim();
+  return [
+    if (address.foreignCountry case final country?)
+      Text(country, style: TextStyle(fontSize: fontSize)),
+    if (addition != null && addition.isNotEmpty)
+      Text(
+        'Zusatz: $addition',
+        style: TextStyle(fontSize: fontSize, fontWeight: FontWeight.w700),
+      ),
+  ];
+}
+
 // ─── Abweichender Empfänger ─────────────────────────────────────────────
 
 /// Hervorgehobene Karte, wenn Lieferadresse oder Empfänger vom Besteller
@@ -210,6 +228,7 @@ class _DifferentRecipientCard extends StatelessWidget {
                           fontWeight: FontWeight.w600,
                         ),
                       ),
+                      ..._addressExtras(address, fontSize: 15),
                     ],
                   ),
                 ),
@@ -701,6 +720,7 @@ class _CustomerCard extends StatelessWidget {
                           '${c.address.postalCode} ${c.address.city}',
                           style: const TextStyle(fontSize: 14),
                         ),
+                        ..._addressExtras(c.address, fontSize: 14),
                       ],
                     ),
                   ),

lib/feature/delivery/overview/presentation/delivery_overview.dart

@@ -439,7 +439,7 @@ class _NextDeliveryCard extends StatelessWidget {
               const SizedBox(height: 10),
               _InfoRow(
                 icon: Icons.location_on_outlined,
-                text: recipient.address.oneLine,
+                text: recipient.address.oneLineWithAddition,
                 emphasized: true,
               ),
               if (recipient.differsFromOrderer)
@@ -846,7 +846,7 @@ class _DeliveryTile extends StatelessWidget {
                       ),
                       const SizedBox(height: 2),
                       Text(
-                        recipient.address.oneLine,
+                        recipient.address.oneLineWithAddition,
                         style: TextStyle(
                           fontSize: 12,
                           color: theme.colorScheme.onSurfaceVariant,

lib/feature/loading/presentation/loading_customer_page.dart

@@ -637,7 +637,7 @@ class _CustomerBody extends StatelessWidget {
                     ),
                     const SizedBox(height: 4),
                     Text(
-                      recipient.address.oneLine,
+                      recipient.address.oneLineWithAddition,
                       style: Theme.of(context).textTheme.bodyMedium,
                     ),
                     if (recipient.differsFromOrderer)

lib/feature/loading/presentation/loading_overview_page.dart

@@ -556,7 +556,7 @@ class _OverviewTile extends StatelessWidget {
                       ),
                       const SizedBox(height: 2),
                       Text(
-                        recipient.address.oneLine,
+                        recipient.address.oneLineWithAddition,
                         style: TextStyle(
                           fontSize: 12,
                           color: theme.colorScheme.onSurfaceVariant,

lib/widget/orderer_hint.dart

@@ -60,7 +60,7 @@ class RecipientSubtitle extends StatelessWidget {
       crossAxisAlignment: CrossAxisAlignment.start,
       mainAxisSize: MainAxisSize.min,
       children: [
-        Text(recipient.address.oneLine, style: addressStyle),
+        Text(recipient.address.oneLineWithAddition, style: addressStyle),
         if (recipient.differsFromOrderer)
           OrdererHint(ordererName: ordererName),
       ],