uv + Django[postgres] installation

Installation of:
- Django[argon2]==4.2 (current LTS)
- psycopg2-binary (PostgreSQL driver)

Plus result of django-admin startproject servala src/

README.md

@@ -1,3 +1,15 @@
 # servala-portal
 
-The Servala Self-Service Portal
+The Servala Self-Service Portal
+
+## Development setup
+
+Use ``uv`` to install the project and run its commands while you’re developing:
+
+```bash
+uv sync
+uv run src/manage.py migrate
+uv run src/manage.py runserver
+```
+
+This will start the development server on http://localhost:8000.