Add ModelDefinitions to ModelConfigService (#22302)

packages/core/src/routing/strategies/classifierStrategy.ts

@@ -139,7 +139,7 @@ export class ClassifierStrategy implements RoutingStrategy {
       const model = context.requestedModel ?? config.getModel();
       if (
         (await config.getNumericalRoutingEnabled()) &&
-        isGemini3Model(model)
+        isGemini3Model(model, config)
       ) {
         return null;
       }