fix: shopping list accuracy, Bring! cleanup server-side, vacuum prompt, recipe appliances

## v1.7.5

### Added
- Vacuum sealed prompt after item use (conf/weighted units, auto-dismiss 8s)
- Multi-function appliance awareness in Gemini recipe prompts (Cookeo/Bimby/Thermomix)
- Server-side Bring! cleanup in cron (no client page load required)
- shopping_name field in inventory_list API response

### Fixed
- Bring! cleanup: false token match (Succo/Frutta from product name tokens)
- Bring! cleanup: expired item with fresh family stock no longer flagged critical (Verdure)
- Bring! remove: catalog items now removed via German key fallback (Formaggio→Käse)
- Shopping list: isExpiringSoon false positives (requires pctLeft < 50%)
- Shopping list: expired batch suppressed when fresh restock >= 50%
- Cross-device cleanup: detect app-added items via spec markers not localStorage
- API fetch: cache: 'no-store' on all api() calls
- Shopping page: 45s polling for multi-client sync

manifest.json

@@ -2,7 +2,7 @@
     "name": "EverShelf",
     "short_name": "EverShelf",
     "description": "Gestione completa della dispensa di casa con scansione barcode",
-    "version": "1.7.4",
+    "version": "1.7.5",
     "start_url": "/evershelf/",
     "display": "standalone",
     "background_color": "#f0f4e8",