Write a command-line tool /app/bin/timebuckets that reads a CSV file of events and outputs an aggregated…

Write a command-line tool /app/bin/timebuckets that reads a CSV file of events and outputs an aggregated…: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Input CSV format: - Comma-separated, UTF-8 encoded, with header row: id,timestamp utc,duration…

The task

**Input CSV format:** - Comma-separated, UTF-8 encoded, with header row: `id,timestamp_utc,duration_seconds,timezone` - `id`: arbitrary string (may contain commas if double-quoted per RFC 4180) - `timestamp_utc`: ISO 8601 datetime string in UTC (may or may not include fractional seconds, may use 'Z' or '+00:00'…

Part of ai-and/termgrade-environments.