Initial import: property management SaaS + security hardening + admin dashboard

Property Management Network — Next.js 16 (App Router), Better Auth,
Drizzle ORM over PostgreSQL, Stripe, OpenAI, Resend.

Includes:
- Security hardening: access-control/IDOR fixes, TLS-by-default DB layer,
  constant-time cron auth, strict security headers, atomic AI quota gating,
  HTML/email output encoding, demo-backdoor disabled in production.
- Superadmin dashboard at /admin (overview/MRR, server-paginated users with
  ban/impersonate/plan/delete, billing, platform activity + admin audit log,
  AI usage, system health) via the Better Auth admin plugin.
- Seed/migration utility scripts under scripts/.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/(dashboard)/settings/loading.tsx

@@ -0,0 +1,18 @@
+import { Skeleton } from "@/components/shared/skeleton"
+
+export default function Loading() {
+  return (
+    <div className="max-w-2xl mx-auto space-y-6">
+      <Skeleton className="h-5 w-24" />
+      <div className="rounded-2xl border border-white/[0.06] bg-[#16161f] p-6 space-y-4">
+        {Array.from({ length: 4 }).map((_, i) => (
+          <div key={i} className="space-y-1.5">
+            <Skeleton className="h-3 w-20" />
+            <Skeleton className="h-10 w-full rounded-lg" />
+          </div>
+        ))}
+        <Skeleton className="h-10 w-32 rounded-xl mt-2" />
+      </div>
+    </div>
+  )
+}