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/profile/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from "next/server"
+import { eq } from "drizzle-orm"
+import { db } from "@/lib/db"
+import { profiles } 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 profile = await db.query.profiles.findFirst({
+    where: eq(profiles.id, user.id),
+  })
+
+  return NextResponse.json({ profile: profile ?? null })
+}
+
+export async function PATCH(request: Request) {
+  const user = await getSessionUser()
+  if (!user) return NextResponse.json({ error: "Unauthorized" }, { status: 401 })
+
+  const body = (await request.json()) as Record<string, unknown>
+
+  // Whitelist editable profile fields.
+  const update: Partial<typeof profiles.$inferInsert> = {}
+  if (typeof body.full_name === "string") update.full_name = body.full_name
+  if ("phone" in body) update.phone = (body.phone as string) || null
+  if ("company_name" in body) update.company_name = (body.company_name as string) || null
+
+  const [profile] = await db
+    .update(profiles)
+    .set(update)
+    .where(eq(profiles.id, user.id))
+    .returning()
+
+  return NextResponse.json({ profile })
+}