Fix f-string syntax error in chunk score logging

api/services/model_service.py

@@ -180,7 +180,12 @@ class ModelService:
                         'confidence': vuln_prob
                     })
             
-            print(f"📊 Chunk scores: {[f'{v['confidence']:.1%}' for v in vulnerabilities] if vulnerabilities else ['all safe']}")
+            # Log chunk scores
+            if vulnerabilities:
+                scores = [f"{v['confidence']:.1%}" for v in vulnerabilities]
+                print(f"📊 Chunk scores: {scores}")
+            else:
+                print("📊 Chunk scores: all safe")
             print(f"📈 Max vulnerability score: {max_vuln_prob:.1%}")
         
         return {