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.

templates/components/modal.html

@@ -0,0 +1,5 @@
+<div class="fixed inset-0 z-60 hidden items-center justify-center bg-black/40" id="modal-root" hx-get="/org/" hx-trigger="revealed" hx-target="#modal-body" hx-swap="innerHTML">
+  <div class="w-full max-w-lg bg-white rounded-lg shadow p-4">
+    <div id="modal-body">加载中...</div>
+  </div>
+</div>