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/ui/animated-number.tsx

@@ -0,0 +1,57 @@
+"use client"
+
+import { useEffect, useRef, useState } from "react"
+
+interface AnimatedNumberProps {
+  value: number
+  duration?: number
+  format?: "number" | "currency" | "percent"
+  className?: string
+}
+
+function formatValue(n: number, format: string) {
+  if (format === "currency") return "$" + n.toLocaleString("en-US", { minimumFractionDigits: 0, maximumFractionDigits: 0 })
+  if (format === "percent") return n + "%"
+  return n.toLocaleString()
+}
+
+export function AnimatedNumber({
+  value,
+  duration = 900,
+  format = "number",
+  className,
+}: AnimatedNumberProps) {
+  const [display, setDisplay] = useState(0)
+  const startRef = useRef<number | null>(null)
+  const frameRef = useRef<number>(0)
+  const prevRef = useRef(0)
+
+  useEffect(() => {
+    const from = prevRef.current
+    const to = value
+    prevRef.current = value
+
+    if (from === to) {
+      setDisplay(to)
+      return
+    }
+
+    startRef.current = null
+
+    function tick(ts: number) {
+      if (!startRef.current) startRef.current = ts
+      const elapsed = ts - startRef.current
+      const progress = Math.min(elapsed / duration, 1)
+      const eased = 1 - Math.pow(1 - progress, 3)
+      setDisplay(Math.round(from + (to - from) * eased))
+      if (progress < 1) {
+        frameRef.current = requestAnimationFrame(tick)
+      }
+    }
+
+    frameRef.current = requestAnimationFrame(tick)
+    return () => cancelAnimationFrame(frameRef.current)
+  }, [value, duration])
+
+  return <span className={className}>{formatValue(display, format)}</span>
+}