fix: remove nulls in total count while calculating laterality check summary

filter_data_app.py

@@ -377,6 +377,7 @@ def main():
                     COUNT(*) AS total_count,
                     SUM(CASE WHEN segmentation_completeness = 'pass' THEN 1 ELSE 0 END) AS pass_count,
                     SUM(CASE WHEN laterality_check = 'pass' THEN 1 ELSE 0 END) AS laterality_pass_count,
+                    SUM(CASE WHEN laterality_check is not null THEN 1 ELSE 0 END) AS laterality_check_total_count,
                     SUM(CASE WHEN series_with_vertabra_on_every_slice = 'pass' THEN 1 ELSE 0 END) AS vertabra_pass_count,
                     SUM(CASE WHEN connected_volumes = '1' THEN 1 ELSE 0 END) AS volumes_pass_count
                 FROM 
@@ -390,7 +391,7 @@ def main():
                 laterality,
                 ROUND((pass_count * 100.0) / total_count, 2) || '% (' || pass_count || '/' || total_count || ')' AS segmentation_completeness,
                 CASE WHEN laterality IS NOT NULL 
-                    THEN ROUND((laterality_pass_count * 100.0) / NULLIF(total_count, 0), 2) || '% (' || laterality_pass_count || '/' || total_count || ')' 
+                    THEN ROUND((laterality_pass_count * 100.0) / NULLIF(laterality_check_total_count, 0), 2) || '% (' || laterality_pass_count || '/' || laterality_check_total_count || ')' 
                     ELSE 'N/A' END AS laterality_check,
                 ROUND((vertabra_pass_count * 100.0) / total_count, 2) || '% (' || vertabra_pass_count || '/' || total_count || ')' AS vertabra_check,
                 ROUND((volumes_pass_count * 100.0) / total_count, 2) || '% (' || volumes_pass_count || '/' || total_count || ')' AS volumes_check