mini fixes

Author: Jonas-Isr

orchestration/src/main/java/com/sap/ai/sdk/orchestration/OrchestrationEmbeddingRequest.java

@@ -79,12 +79,13 @@ public interface InputStep {
     /**
      * Specifies multiple text inputs using variable arguments.
      *
-     * @param inputs one or more strings to embed
+     * @param firstInput string to embed
+     * @param inputs optional additional strings to embed
      * @return a new embedding request instance
      */
     @Nonnull
     default OrchestrationEmbeddingRequest forInputs(
-        @Nonnull final String firstInput, String... inputs) {
+        @Nonnull final String firstInput, @Nonnull final String... inputs) {
       return forInputs(Lists.asList(firstInput, inputs));
     }
   }

sample-code/spring-app/src/main/java/com/sap/ai/sdk/app/services/OrchestrationService.java

@@ -4,7 +4,6 @@
 import static com.sap.ai.sdk.orchestration.OrchestrationAiModel.GPT_4O_MINI;
 import static com.sap.ai.sdk.orchestration.OrchestrationAiModel.Parameter.TEMPERATURE;
 import static com.sap.ai.sdk.orchestration.OrchestrationEmbeddingModel.TEXT_EMBEDDING_3_SMALL;
-import static com.sap.ai.sdk.orchestration.model.SAPDocumentTranslation.TypeEnum.SAP_DOCUMENT_TRANSLATION;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.sap.ai.sdk.core.AiCoreService;