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/api/follow-ups/route.ts

@@ -0,0 +1,43 @@
+import { NextResponse } from "next/server"
+import { desc, eq } from "drizzle-orm"
+import { db } from "@/lib/db"
+import { follow_up_rules, follow_up_log } from "@/lib/db/schema"
+import { getSessionUser } from "@/lib/session"
+
+export async function GET() {
+  const user = await getSessionUser()
+  if (!user) return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+
+  const [rules, logs] = await Promise.all([
+    db
+      .select()
+      .from(follow_up_rules)
+      .where(eq(follow_up_rules.user_id, user.id))
+      .orderBy(follow_up_rules.created_at),
+    db
+      .select()
+      .from(follow_up_log)
+      .where(eq(follow_up_log.user_id, user.id))
+      .orderBy(desc(follow_up_log.created_at))
+      .limit(30),
+  ])
+
+  return NextResponse.json({ rules, logs })
+}
+
+export async function POST(request: Request) {
+  const user = await getSessionUser()
+  if (!user) return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+
+  const body = await request.json()
+  const { type, name, trigger_days, message_template } = body
+
+  if (!type || !name) return NextResponse.json({ error: "type and name required" }, { status: 400 })
+
+  const [data] = await db
+    .insert(follow_up_rules)
+    .values({ user_id: user.id, type, name, trigger_days: trigger_days ?? 3, message_template })
+    .returning()
+
+  return NextResponse.json(data, { status: 201 })
+}