Initialize Fonrey Django multi-tenant project skeleton

Set up the required directory layout, app scaffolding, core settings, templates, static assets, and Docker/Tailwind tooling to establish a standardized development baseline.

apps/complex/views.py

@@ -0,0 +1,5 @@
+from django.http import HttpRequest, HttpResponse
+
+
+def index(request: HttpRequest) -> HttpResponse:
+    return HttpResponse("complex app placeholder")