Final commit.

lib/domain/entity/service.dart

@@ -0,0 +1,29 @@
+/// Eingabetyp eines Service. `boolean` → Checkbox, `numeric` → Zahlenfeld
+/// mit optionalen Grenzen.
+enum ServiceKind { boolean, numeric }
+
+/// Service-Stammdatensatz (früher „Lieferoption") — admin-konfigurierbar.
+/// In Phase 4 rendert die App aus den aktiven Services die Auswahl.
+class Service {
+  const Service({
+    required this.id,
+    required this.key,
+    required this.name,
+    required this.kind,
+    required this.active,
+    required this.sortOrder,
+    this.minValue,
+    this.maxValue,
+  });
+
+  final String id;
+  final String key;
+  final String name;
+  final ServiceKind kind;
+  final bool active;
+  final int sortOrder;
+
+  /// Nur bei [ServiceKind.numeric] relevant.
+  final int? minValue;
+  final int? maxValue;
+}