Explicitly use locale with en_US in String.format

Author: zhfeng

data-extract-langchain4j/src/main/java/org/acme/extraction/CustomPojoExtractionService.java

@@ -17,6 +17,7 @@
 package org.acme.extraction;
 
 import java.time.LocalDate;
+import java.util.Locale;
 
 import dev.langchain4j.service.UserMessage;
 import io.quarkiverse.langchain4j.RegisterAiService;
@@ -45,7 +46,7 @@ static class CustomPojo {
                 + "}\n";
 
         public String toString() {
-            return String.format(FORMAT, this.customerSatisfied, this.customerName, this.customerBirthday,
+            return String.format(Locale.US, FORMAT, this.customerSatisfied, this.customerName, this.customerBirthday,
                     this.customerBirthday, this.customerBirthday, this.summary);
         }
     }

data-extract-langchain4j/src/main/resources/application.properties

@@ -34,3 +34,6 @@ quarkus.langchain4j.ollama.chat-model.temperature = 0
 
 # Configure Quarkus LangChain4j to keep a single message in memory, forgetting about previous data extractions
 quarkus.langchain4j.chat-memory.memory-window.max-messages = 1
+
+quarkus.native.user-country=US
+quarkus.native.user-language=en