Framework detection fails for Flask project in Firebase Studio

### [REQUIRED] Environment details

- **Firebase CLI Version:** (14.22.0)
- **Platform:** Firebase Studio (Web-based VS Code environment)

### [REQUIRED] Test case

I am using the standard Python/Flask template provided by Firebase Studio. The project contains a `main.py` with a Flask app and a `requirements.txt` file.

### [REQUIRED] Steps to reproduce

1. Create a new project in Firebase Studio using the Python (Flask) web app template.
2. In the terminal, run `firebase login` and complete the authentication.
3. Run `firebase experiments:enable webframeworks`.
4. Run `firebase deploy`.

### [REQUIRED] Expected behavior

The Firebase CLI should detect the Flask framework and proceed with the deployment to App Hosting.

### [REQUIRED] Actual behavior

The CLI fails with the error: `Error: Unable to detect the web framework in use`.

Additionally, when running `firebase init hosting` and manually selecting "use a web framework", **Flask is not present** in the list of available frameworks to choose from. This seems to be the root cause of the issue within the Firebase Studio environment.