Implement a command-line tool /app/render that reads a JSON data file and a template file, and produces a…

Implement a command-line tool /app/render that reads a JSON data file and a template file, and produces a…: a task in termgrade-bandcentral-gemma4-31b-bash: TermGrade Band-Central: the 151-task selection and its splits (Harbor dataset). Usage: /app/render --data <data.json --template <template.txt…

The task

**Usage:** `/app/render --data <data.json> --template <template.txt> --output <output.txt>`

Part of ai-and/termgrade-bandcentral-gemma4-31b-bash.