✨(project) first proof of concept based of Joanie

Used https://github.com/openfun/joanie as boilerplate, ran a few
transformations with ChapGPT  and adapted models and endpoints to
fit to my current vision of the project.

src/backend/manage.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+"""
+People's sandbox management script.
+"""
+import os
+import sys
+
+if __name__ == "__main__":
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "people.settings")
+    os.environ.setdefault("DJANGO_CONFIGURATION", "Development")
+
+    from configurations.management import execute_from_command_line
+
+    execute_from_command_line(sys.argv)