Lifts the detail-screen "Approve & send email" button behaviour onto
the pending-approvals list rows. Replaces the list's existing
two-step approve + drill-in flow with the existing combined
review-approve endpoint behind the same SendQuoteModal the detail
page already uses.
Out of scope: "approve without send" toggle in the modal, inline
markup-edit on a row.
Co-Authored-By: Claude <noreply@anthropic.com>
