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[2026-09-25 13:52:59] production.INFO: CSV import completed {"session_id":"csv_import_6ab5fe2b39f941.47474854","user_id":110,"user_name":"unknown","ip_address":"221.241.23.166","user_agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.0.0 Safari/537.36 Edg/153.0.0.0","result":{"import_id":765,"success":true,"total_rows":156,"processed_rows":156,"success_rows":156,"error_rows":0,"warning_rows":0,"has_error_file":false},"performance":{"execution_time_seconds":0.752,"start_memory_mb":8.0,"end_memory_mb":12.0,"peak_memory_mb":12.0,"memory_increase_mb":4.0},"timestamp":"2026-09-25T04:52:59.990036Z","component":"csv_import"}