feat: complete Phase 3 scaffolding (templates, static, Docker, per-app skeletons)

- Per-app skeleton completion: property/client/setting now have services/,
  tasks.py, views.py, urls.py, serializers.py, templates/<app>/, tests/
- admin.py added to all 10 apps (per spec §2.108 / §17.3)
- Top-level templates/: base.html, layouts/{app,auth}.html, components/
  {topbar,sidebar,pagination,toast,modal,empty-state}.html, errors/
  {403,404,500}.html
- static/: css/main.css (Tailwind entry), js/main.js (HTMX toast +
  CSRF wiring per §7.4), vendor/.gitkeep
- tailwind.config.js: Primary teal + neutral slate + semantic colors,
  Inter font stack, z-60/z-70, shadow-xs, slide-in-right animation per
  UI_SYSTEM §2.7/§10.1
- package.json: tailwindcss-only build/watch
- Dockerfile + docker-compose.yml (6 services: web/db/redis/celery/
  celery-beat/tailwind) + docker-compose.prod.yml + Makefile
- tests/ root: conftest.py with TenantClient fixture per §720,
  integration/{property,client,release}/, e2e/, schemathesis skeleton
- Removed empty apps/tenant/models/ (tenant uses models.py per §17.1)

Validated: manage.py check passes; tree matches spec §2 exactly.

templates/components/empty-state.html

@@ -0,0 +1,3 @@
+<div class="flex flex-col items-center justify-center py-12 text-neutral-500">
+    <p class="text-sm">{% block empty_message %}暂无数据{% endblock %}</p>
+</div>

templates/components/modal.html

@@ -0,0 +1,9 @@
+<div x-data="{ open: false }"
+     x-show="open"
+     x-cloak
+     class="fixed inset-0 z-50 flex items-center justify-center bg-neutral-900/40">
+    <div class="bg-white rounded-lg shadow-xs max-w-lg w-full p-6"
+         @click.outside="open = false">
+        {% block modal_body %}{% endblock %}
+    </div>
+</div>

templates/components/pagination.html

@@ -0,0 +1,3 @@
+<nav class="flex items-center justify-between py-3" aria-label="分页">
+    {% block pagination_body %}{% endblock %}
+</nav>

templates/components/sidebar.html

@@ -0,0 +1,6 @@
+<aside :class="sidebarOpen ? 'w-60' : 'w-16'"
+       class="fixed top-14 left-0 bottom-0 z-20 bg-white border-r border-neutral-200 transition-all">
+    <nav class="flex flex-col p-2 gap-1">
+        {% block sidebar_items %}{% endblock %}
+    </nav>
+</aside>

templates/components/toast.html

@@ -0,0 +1,4 @@
+<template id="toast-template">
+    <div class="bg-white border border-neutral-200 rounded-lg shadow-xs px-4 py-3 min-w-[280px]"
+         data-toast-type=""></div>
+</template>

templates/components/topbar.html

@@ -0,0 +1,15 @@
+<header class="sticky top-0 z-20 bg-primary-800 text-white h-14 flex items-center px-4">
+    <div class="w-[150px] flex items-center">
+        <span class="font-semibold">Fonrey</span>
+    </div>
+
+    <nav class="flex-1 flex items-center gap-1">
+        {% block nav %}{% endblock %}
+    </nav>
+
+    <div class="flex items-center gap-3">
+        <button type="button" aria-label="通知"></button>
+        <button type="button" aria-label="设置"></button>
+        <button type="button" aria-label="账户"></button>
+    </div>
+</header>