stable POC version 1 - chat and topics

backend/src/main/java/com/aiteacher/topic/TopicSummaryService.java

@@ -65,8 +65,8 @@ public class TopicSummaryService {
         List<TopicSummaryResponse.SourceReference> sources = extractSources(response);
 
         return new TopicSummaryResponse(
-            topic.id(),
-            topic.name(),
+            topic.getId(),
+            topic.getName(),
             summary,
             sources,
             Instant.now()
@@ -78,7 +78,7 @@ public class TopicSummaryService {
             "Please provide a comprehensive educational summary of the following neurosurgery topic: " +
             "%s. Topic description: %s. " +
             "Include key concepts, clinical considerations, and important details that a neurosurgeon should know.",
-            topic.name(), topic.description()
+            topic.getName(), topic.getDescription()
         );
     }