add welcome API
The merge request updates the Simple Notes application to use Python 3.9 instead of 3.10, improves fuzzing capabilities by using the PythonFuzz library, and adds basic authentication with hardcoded passwords. It also includes various security fixes, such as addressing random number generation and secret passthrough vulnerabilities. Additionally, the application is now set to run in debug mode, which may be useful for troubleshooting.
Edited by micheli knechtel