Potential fix for code scanning alert no. 1: Flask app is run in debug mode

[Code-lab-web]

Potential fix for https://github.com/Code-lab-web/project-final/security/code-scanning/1

In general, the problem is fixed by ensuring Flask debug mode is not forcibly enabled in code that may be run outside a strictly controlled local development context. Common approaches are: (1) remove debug=True entirely so that Flask uses its default (debug=False), or (2) make debug conditional on an environment variable or configuration so that production never runs with debug enabled.

For this specific file, the least invasive change that preserves existing behavior in a safe way is to remove the debug=True argument from app.run(...). This keeps the script runnable directly (useful for tests) but prevents the Werkzeug debugger from being exposed. Since no host/port customization is shown, we will simply change line 40 from app.run(debug=True) to app.run(). No new imports or helper methods are needed.

Concretely:

• File: frontend/src/tests/jsonify.py
• Lines to change: 39–40, specifically the app.run(debug=True) call.
• Replacement: app.run() with no debug parameter.

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