- Add Launch Date Inconsistencies tab: shows when Ready to Order > Launch Date
- Add Upcoming Launch Date tab: alerts when launch is within 180 days (yellow) or 120 days (red)
- Show days until launch countdown
When editing from Missing Data view, only Classification, Launch Date
and Ready to Order fields are shown in a lightweight slide-in panel.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replaces the tab approach with a dedicated 'Missing Data' module in the
sidebar. The module has two sub-tabs: 'Missing Classification' and
'Missing Launch Date'. Shows SKU, Name, Classification, Launch Date and
Ready to Order columns. Includes a local Excel serial date formatter so
dates that slipped through the App.tsx pre-processing are rendered
correctly instead of showing as raw numbers.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>