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>

.dockerignore

@@ -0,0 +1,35 @@
+# Dependencies & build output (reinstalled / rebuilt inside the image)
+node_modules
+.next
+out
+build
+coverage
+
+# Secrets — never bake env files into the image
+.env
+.env.*
+
+# Local file storage (uploads live on a mounted volume, not in the image)
+storage
+
+# Version control & tooling
+.git
+.gitignore
+.gitattributes
+.vercel
+*.tsbuildinfo
+
+# Editor / OS noise
+.DS_Store
+.vscode
+.idea
+
+# Docs not needed at runtime
+DOCS
+README.md
+COOLIFY.md
+
+# Don't copy the Docker context files into the image
+Dockerfile
+.dockerignore
+docker-compose.yml