Template Renderer with HTML Escaping

Template Renderer with HTML Escaping: a task in termgrade-bandcentral-gemma4-31b-bash: TermGrade Band-Central: the 151-task selection and its splits (Harbor dataset). Create a command-line tool /app/render.py that reads a JSON data file and a template file, then renders the template to stdout by…

The task

Create a command-line tool `/app/render.py` that reads a JSON data file and a template file, then renders the template to stdout by replacing `{{key}}` placeholders with values from the JSON data.

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