LiveView for creating and editing goods receipts.
Handles:
:new— creates an empty draft and redirects to :edit.:edit— loads an existing receipt; :general tab.:lines— verification sheet: ordered_quantity (read-only) beside editable received_quantity.:files— MediaBrowser; storage folder resolved asynchronously.:comments— goods receipt comments thread.
Uses the admin-chrome pattern: use PhoenixKitWeb, :live_view +
<.admin_page_header>. No <Layouts.app>, no streams.
All navigation paths wrapped in PhoenixKit.Utils.Routes.path/1.