VHS-Karten integriert, Bildzoom ergänzt und Chat-IDs korrigiert

Unterschriftenerfassung dauerhaft auf Deutsch anzeigen, lokale VHS-Buildkonfiguration und Regressionstests ergänzen sowie Version auf 357.0.0+357 anheben.

test/model/chat_message_test.dart

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+import 'package:flat_buffers/flat_buffers.dart' as fb;
+import 'package:flutter_test/flutter_test.dart';
+import 'package:objectbox/internal.dart' show EntityDefinition;
+import 'package:stadtbote/model/chat_message.dart';
+import 'package:stadtbote/objectbox.g.dart';
+
+void main() {
+  group('ChatMessage IDs', () {
+    test('initialisiert ausgehende Nachrichten vollständig', () {
+      final message = _outgoingMessage();
+
+      expect(message.id, 0);
+      expect(message.toJson(), {
+        'id': 42,
+        'time': 1791366832,
+        'from': 'courier-123',
+        'subj': '',
+        'text': 'Auftrag erledigt',
+        'read': true,
+      });
+    });
+
+    test('serialisiert ausgehende Nachrichten für ObjectBox ohne Fehler', () {
+      final message = _outgoingMessage();
+      final definition = getObjectBoxModel().bindings[ChatMessage]!
+          as EntityDefinition<ChatMessage>;
+      final builder = fb.Builder();
+
+      expect(definition.objectToFB(message, builder), 0);
+
+      final buffer = fb.BufferContext.fromBytes(builder.buffer);
+      final root = buffer.derefObject(0);
+      const intReader = fb.Int64Reader();
+      const stringReader = fb.StringReader();
+
+      expect(intReader.vTableGet(buffer, root, 4, -1), 0);
+      expect(intReader.vTableGet(buffer, root, 6, -1), 42);
+      expect(intReader.vTableGet(buffer, root, 8, -1), 1791366832);
+      expect(stringReader.vTableGet(buffer, root, 10, ''), 'courier-123');
+      expect(stringReader.vTableGet(buffer, root, 12, 'missing'), '');
+      expect(stringReader.vTableGet(buffer, root, 14, ''), 'Auftrag erledigt');
+      expect(const fb.BoolReader().vTableGet(buffer, root, 16, false), isTrue);
+    });
+
+    test('verwendet nach lokaler ID-Vergabe weiterhin die Nachrichten-ID', () {
+      final message = _outgoingMessage();
+      final definition = getObjectBoxModel().bindings[ChatMessage]!
+          as EntityDefinition<ChatMessage>;
+
+      definition.setId(message, 99);
+
+      expect(message.id, 99);
+      expect(message.externalId, 42);
+      expect(message.toJson()['id'], 42);
+    });
+
+    test('übernimmt empfangene Server-IDs getrennt von der lokalen ID', () {
+      final message = ChatMessage.fromJson({
+        'id': 21891302,
+        'time': 1791366832,
+        'from': 'Zentrale',
+        'subj': 'Rückfrage',
+        'text': 'Bitte melden',
+      });
+
+      expect(message.id, 0);
+      expect(message.externalId, 21891302);
+      expect(message.read, isFalse);
+      expect(message.toJson(), {
+        'id': 21891302,
+        'time': 1791366832,
+        'from': 'Zentrale',
+        'subj': 'Rückfrage',
+        'text': 'Bitte melden',
+        'read': false,
+      });
+    });
+  });
+}
+
+ChatMessage _outgoingMessage() => ChatMessage.outgoing(
+  externalId: 42,
+  time: 1791366832,
+  from: 'courier-123',
+  text: 'Auftrag erledigt',
+);

test/model/job_map_url_test.dart

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+import 'dart:convert';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:stadtbote/model/job.dart';
+
+void main() {
+  group('Job map_url', () {
+    test('erhält die Server-URL einschließlich Query und Fragment', () {
+      const mapUrl = 'https://vhs.example.invalid/map?job=21891302#courier';
+      final payload = _jobPayload()..['map_url'] = mapUrl;
+
+      final job = Job.fromJson(payload);
+      final serialized =
+          jsonDecode(jsonEncode(job.toJson())) as Map<String, dynamic>;
+      final restored = Job.fromJson(serialized);
+
+      expect(job.mapUrl, mapUrl);
+      expect(serialized['map_url'], mapUrl);
+      expect(restored.mapUrl, mapUrl);
+      expect(restored.externalId, 21891302);
+    });
+
+    test('liest ältere Aufträge ohne map_url weiterhin ein', () {
+      final job = Job.fromJson(_jobPayload());
+      final restored = Job.fromJson(job.toJson());
+
+      expect(job.mapUrl, isNull);
+      expect(restored.mapUrl, isNull);
+      expect(restored.externalId, 21891302);
+    });
+
+    test('akzeptiert eine explizit fehlende map_url', () {
+      final payload = _jobPayload()..['map_url'] = null;
+
+      expect(Job.fromJson(payload).mapUrl, isNull);
+    });
+  });
+}
+
+Map<String, dynamic> _jobPayload() => {
+  'id': 21891302,
+  'ver': '0',
+  'state': 0,
+  'ordertime': 1791285073,
+  'offs_warn': 0,
+  'global': false,
+  'vht_id': 2,
+  'rem': '',
+  'delayOrderTime': 0,
+  'tours': <Map<String, dynamic>>[],
+};