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/tasks.py

@@ -0,0 +1,6 @@
+from celery import shared_task
+
+
+@shared_task
+def sample_task() -> str:
+    return "complex task placeholder"