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Create a command-line tool /app/ledger that reads a CSV transaction ledger and produces a summary report…

Create a command-line tool /app/ledger that reads a CSV transaction ledger and produces a summary report…: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Input CSV format: - No header row. - Each row has exactly 5 fields: id,date,description,amount,currency - id…

The task

**Input CSV format:** - No header row. - Each row has exactly 5 fields: `id,date,description,amount,currency` - `id` is a non-empty alphanumeric string (may contain hyphens) - `date` is ISO 8601 format `YYYY-MM-DD` - `description` is a double-quoted string that may contain commas, quotes (escaped as `""`), newlines,…

Part of ai-and/termgrade-environments.