Добавил слой Application

backend/UniVerse.Application/Interfaces/ILlmClient.cs

@@ -0,0 +1,13 @@
+namespace UniVerse.Application.Interfaces;
+
+public record LlmReviewAnalysis(
+    double QualityScore,
+    string Sentiment,
+    string[] Tags,
+    bool IsInformative
+);
+
+public interface ILlmClient
+{
+    Task<LlmReviewAnalysis> AnalyzeReviewAsync(string reviewText, string lectureContext);
+}