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>

components/dashboard/page-transition.tsx

@@ -0,0 +1,23 @@
+"use client"
+
+import { motion, AnimatePresence } from "framer-motion"
+import { usePathname } from "next/navigation"
+
+export function PageTransition({ children }: { children: React.ReactNode }) {
+  const pathname = usePathname()
+
+  return (
+    <AnimatePresence mode="wait">
+      <motion.div
+        key={pathname}
+        initial={{ opacity: 0, y: 6 }}
+        animate={{ opacity: 1, y: 0 }}
+        exit={{ opacity: 0, y: -4 }}
+        transition={{ duration: 0.18, ease: "easeOut" }}
+        className="h-full"
+      >
+        {children}
+      </motion.div>
+    </AnimatePresence>
+  )
+}