hotfix: MBTI 기본 가중치 값 수정

Author: dohy-eon

src/main/java/org/umc/valuedi/domain/mbti/service/FinanceMbtiScoringService.java

@@ -15,7 +15,7 @@ public class FinanceMbtiScoringService {
 
     private final FinanceMbtiProvider typeInfoProvider;
 
-    private static final double BASE_SCORE = 10.0;
+    private static final double BASE_SCORE = 5.0;
 
     public record ScoreResult(
             int anxietyScore,