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[2026-03-20 08:49:24] production.INFO: CSV import completed {"session_id":"csv_import_69bc8b7ba0d498.42561563","user_id":0,"user_name":"unknown","ip_address":"211.19.31.78","user_agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36","result":{"import_id":1,"success":true,"total_rows":2604,"processed_rows":2604,"success_rows":2604,"error_rows":0,"warning_rows":0,"has_error_file":false},"performance":{"execution_time_seconds":9.302,"start_memory_mb":30.0,"end_memory_mb":34.0,"peak_memory_mb":34.0,"memory_increase_mb":4.0},"timestamp":"2026-03-19T23:49:24.961000Z","component":"csv_import"}