Create a CLI tool /app/transform that reads a UTF-8 encoded CSV file and produces a summary JSON report to…

Create a CLI tool /app/transform that reads a UTF-8 encoded CSV file and produces a summary JSON report to…: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Input contract: - The tool accepts exactly one argument: path to a CSV file. - The CSV has NO header row. -…

The task

**Input contract:** - The tool accepts exactly one argument: path to a CSV file. - The CSV has NO header row. - Each row has exactly 4 columns in order: `user_id`, `timestamp`, `event_type`, `value`. - `user_id`: non-empty string of alphanumeric characters and hyphens. - `timestamp`: ISO 8601 string that may end with…

Part of ai-and/termgrade-environments.