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Implement a command-line template renderer that processes template files with variable substitution and…

Implement a command-line template renderer that processes template files with variable substitution and…: a task in TermGrade Environments: 1,004 executable Linux tasks (Harbor dataset). Goal : Create a script /app/render.py that renders template files using a JSON context file, applying HTML…

The task

**Goal**: Create a script `/app/render.py` that renders template files using a JSON context file, applying HTML, URL, and JavaScript escaping based on a prefix convention in the template placeholders.

Part of ai-and/termgrade-environments.