Update app.py

app.py

@@ -604,9 +604,7 @@ def preprocess_row(species, media, light, expo_day, expo_night, temp_c, ph, days
         "expo_day": expo_day, "expo_night": expo_night,
         "_c": temp_c, "ph": ph, "days": days
     }], columns=FEATURES)
-    
-    # encode categoricals — robust to unseen labels
-for col in bundle.categorical_cols:
+    for col in bundle.categorical_cols:
     if col in X.columns:
         enc = bundle.encoders[col]
         def _to_known_code(v):
@@ -622,6 +620,8 @@ for col in bundle.categorical_cols:
     # impute (KNN uses THIS imputer)
     row = pd.DataFrame(imputer.transform(row[FEATURES]), columns=FEATURES)
     return row
+    
+
 
 # -----------------------------
 # Uncertainty engine (KNN from augmented)