19 tasks across 7 chunks covering 6 features: flash messages, form hints, read receipts, recipient preview, branded email, file attachments. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Six incremental improvements: flash confirmation, form hint, recipient preview, read receipts, branded email, file attachments. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>