v1.2.1 — Coordinator safety-net

Fixed

• Coordinator safety-net — total_items is now guaranteed to be populated in coordinator data even if a future PHP API change restructures the response. Falls back to the response state value.

Notes (audit findings)

All other reported issues were investigated and confirmed to be non-issues:

• expiring_soon key name is consistent between PHP and sensor.py ✅
• shopping_total is already sent as a float by PHP; currency is handled dynamically via price_currency ✅
• Product lists (expiring_list, expired_list, low_stock_list) are passed through correctly ✅