fix: recalculate CQI from current weights instead of using stale persisted value

reconstructCqiDetails() was returning participation.getCqi() which was
computed at analysis time with whatever weights were active then. After
changing custom weights the CQI didn't update. Now recalculates the
weighted sum from persisted component scores and current weights.

Author: Predixx

src/main/java/de/tum/cit/aet/analysis/service/AnalysisQueryService.java

@@ -130,11 +130,11 @@ public ClientResponseDTO mapParticipationToClientResponse(TeamParticipation part
                         s.getLinesDeleted(), s.getLinesChanged()))
                 .toList();
 
-        Double cqi = participation.getCqi();
         Boolean isSuspicious = participation.getIsSuspicious() != null ? participation.getIsSuspicious() : false;
 
         AnalysisMode mode = analysisStateService.getStatus(participation.getExerciseId()).getAnalysisMode();
         CQIResultDTO cqiDetails = reconstructCqiDetails(participation, mode);
+        Double cqi = cqiDetails != null ? cqiDetails.cqi() : participation.getCqi();
 
         return new ClientResponseDTO(
                 tutor != null ? tutor.getName() : "Unassigned",
@@ -260,12 +260,12 @@ public CQIResultDTO reconstructCqiDetails(TeamParticipation participation, Analy
                     : cqiCalculatorService.buildRenormalizedWeightsWithoutEffort(exerciseId);
         }
 
-        return new CQIResultDTO(
-                participation.getCqi() != null ? participation.getCqi() : 0.0,
-                components,
-                weights,
-                participation.getCqiBaseScore() != null ? participation.getCqiBaseScore() : 0.0,
-                null);
+        double baseScore = components.weightedSum(
+                weights.effortBalance(), weights.locBalance(),
+                weights.temporalSpread(), weights.ownershipSpread());
+        double cqi = Math.max(0, Math.min(100, baseScore));
+
+        return new CQIResultDTO(cqi, components, weights, baseScore, null);
     }
 
     /**