Banner: adapt expired icon/color/title to safety level (non-alarmist)

- ok level (long-life/freezer safe): green banner, ✅ icon, 'Scaduto (ancora ok)'
- warning level: amber banner, 👀 icon, 'Scaduto (controlla)'
- danger level: unchanged red 🚫 banner
- Added banner-expired-ok / banner-expired-warning CSS variants
- Added expiry.expired_suffix_ok / expired_suffix_warning i18n keys (IT/EN/DE)
- Updated README and CHANGELOG

README.md

@@ -12,8 +12,9 @@
 
 ---
 
-## 🌍 Recent i18n Updates
+## 🌍 Recent Updates
 
+- **Non-alarmist expired banner** — The expired-product banner now adapts its icon, colour, and title to the actual safety level: green ✅ for long-life products that are still safe, amber 👀 for items that should be checked, and the original red 🚫 only for genuinely dangerous items (raw meat, dairy, fish). Low-risk products like canned tomatoes or pasta are no longer shown with a scary red banner.
 - Recipe and meal-plan labels now resolve at runtime from translations, preventing raw placeholders like `meal_types.*` and `meal_plan_types.*` from appearing in the UI.
 - Recipe generation now receives the selected app language (`it`/`en`/`de`) and enforces localized output in both streaming and non-streaming API flows.
 - Added missing shared error keys (`error.network`, `error.no_api_key`) across all language files to keep fallback/error toasts fully translated.
@@ -64,7 +65,7 @@
 - **Opened products panel** — Tracks partially-used items; expiry is recalculated from the opening date using AI (Gemini) + per-category rule fallback; whole sealed packages always keep their original manufacturer expiry; conf items with mixed whole + fractional units are shown as two separate entries
 - **Freezer shelf-life** — Granular per-product estimates (USDA/EFSA): fish 120 d, poultry 270 d, whole red-meat cuts 365 d, mince 120 d, vegetables/fruit 270 d, generic 180 d; AI + cache still take priority over rules
 - **Safety ratings** — Smart assessment of expired product safety (by category and location); expired unsafe items shown with a red danger banner and "L'ho buttato" as the primary action
-- **Expired product banner** — Products that have passed their effective shelf-life (including opened-product reduced expiry) appear in the top notification banner with safety tip, danger styling for high-risk items, and a prominent discard action
+- **Expired product banner** — Products that have passed their effective shelf-life (including opened-product reduced expiry) appear in the top notification banner; icon, colour and title adapt to the actual safety level (✅ green for safe, 👀 amber to check, 🚫 red for danger); high-risk items get a prominent discard action
 - **Quick recipe bar** — One-tap recipe suggestion using expiring products
 - **Anomaly banner** — Scrollable banner with suspicious quantities and consumption prediction mismatches, with one-tap correction or inline edit
 - **Expired/expiring alerts** — Priority-sorted banner notifications for expired and soon-to-expire products with use, throw, edit, and dismiss actions