defmodule Accrue do
  @moduledoc """
  Accrue — billing state, modeled clearly.

  Accrue is an open-source Elixir/Phoenix payments and billing library built
  idiomatically for the Elixir/Ecto/Plug/Phoenix ecosystem. It gives Phoenix SaaS
  developers a batteries-included jumpstart for everything a real SaaS business
  needs on day one: subscriptions, checkout, invoices, coupons, emails, PDFs,
  webhooks, admin UI, and telemetry — without the migration pain and design
  regrets earlier libraries accumulated.

  See the project vision document (`.planning/PROJECT.md`) for the full scope
  and requirements shape. This module is intentionally a namespace anchor at
  Wave 0; the public API surfaces (`Accrue.Billing`, `Accrue.Events`,
  `Accrue.Mailer`, `Accrue.PDF`, `Accrue.Auth`, `Accrue.Processor`) are
  introduced across the remaining Phase 1 plans.
  """
end