v2.0.5: Add typed service lookup entrypoint and tests for Arcane.service

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

lib/src/arcane.dart

@@ -43,6 +43,9 @@ abstract class Arcane {
   /// Logger is not a service and is always the singleton.
   static ArcaneLogger get logger => ArcaneLogger.I;
 
+  /// Provides typed service lookups through `Arcane.service.ofType<T>(context)`.
+  static const ArcaneServiceLookup service = ArcaneServiceLookup();
+
   /// Provides access to the feature flags service instance registered in ArcaneApp, or the singleton if not present.
   static ArcaneFeatureFlagService get features =>
       services.whereType<ArcaneFeatureFlagService>().firstOrNull ??

lib/src/service/service_provider.dart

@@ -144,3 +144,20 @@ class ArcaneServiceProvider
     return true;
   }
 }
+
+/// Typed service lookup entrypoint for `Arcane.service`.
+class ArcaneServiceLookup {
+  const ArcaneServiceLookup();
+
+  /// Returns a service of type `T` from the closest provider in [context].
+  ///
+  /// Falls back to Arcane's built-in services when no provider instance exists.
+  T? ofType<T extends ArcaneService>(BuildContext context) =>
+      ArcaneService.ofType<T>(context);
+
+  /// Returns a service of type `T` from the closest provider in [context].
+  ///
+  /// Throws an assertion error if no matching service is available.
+  T requiredOfType<T extends ArcaneService>(BuildContext context) =>
+      ArcaneService.requiredOfType<T>(context);
+}