Create a CLI tool /app/pipeline that processes a pipe-delimited log file and outputs aggregated statistics.

Create a CLI tool /app/pipeline that processes a pipe-delimited log file and outputs aggregated statistics.: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Input format (stdin or file argument): - Pipe-delimited records, one per line - Fields: timestamp user id…

The task

**Input format (stdin or file argument):** - Pipe-delimited records, one per line - Fields: `timestamp|user_id|event_type|value` - `timestamp`: ISO 8601 with timezone offset (e.g., `2024-01-15T08:30:00+01:00` or `2024-01-15T08:30:00Z`). Seconds may be omitted. - `user_id`: non-empty string - `event_type`: one of…

Part of ai-and/termgrade-environments.