style(csv): format files with black

Author: PRAteek-singHWY

application/utils/spreadsheet_parsers.py

@@ -135,7 +135,15 @@ def is_empty(value: Optional[str]) -> bool:
     )
 
 
-def validate_export_csv_rows(rows: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+def validate_import_csv_rows(rows: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+    """
+    Entry point for parsing imported CSV files.
+
+    CSV validation is handled at the parser level.
+    Structural and row-level validation rules are implemented in
+    "validate_import_csv_rows", which is invoked internally
+    before parsing proceeds.
+    """
     if not rows:
         raise ValueError("Invalid CSV format or missing data rows")