feat: HA sensor enrichment, inventory edit guard, recipe ingredient fix, bread shelf-life

- HA sensor: expiring_list now includes full product details (location, brand,
  category, days_remaining, opened_at, vacuum_sealed, default_quantity, etc.)
- HA sensor: new expired_list attribute with full product details per expired item
- HA sensor: new low_stock_list attribute (items with quantity ≤ 1, full details)
- HA sensor: new sensor=product endpoint (?action=ha_sensor&sensor=product)
  with optional filters: &id=, &name=, &location=
- HA cron webhook: expiry alert items now carry full product details
- Inventory edit: confirm dialog when quantity exceeds unit-specific threshold
  (prevents data loss from unit-confusion typos, e.g. 183 conf instead of 0.183)
- Recipe AI: explicit rule against ingredient form substitution
  (fresh tomatoes ≠ passata, fresh milk ≠ UHT ≠ cream, etc.)
- Shelf-life: opened bread rules (piadina 2d, bauletto/pancarrè 4d, pane 3d)
- docs/wiki: HA page updated with new schema, examples, product endpoint

Closes #125

translations/de.json

@@ -1086,11 +1086,13 @@
         "offline_ai_disabled": "Offline nicht verfügbar",
         "offline_cache_ready": "Offline — {n} Produkte im Cache"
     },
+    "confirm_placeholder_search": null,
     "confirm": {
         "remove_item": "Möchtest du dieses Produkt wirklich aus dem Bestand entfernen?",
         "kiosk_exit": "Kioskmodus verlassen?",
         "cancel": "Abbrechen",
-        "proceed": "Bestätigen"
+        "proceed": "Bestätigen",
+        "discard_one": "1 Stück wegwerfen"
     },
     "location": {
         "dispensa": "Vorratskammer",
@@ -1102,7 +1104,8 @@
         "unknown_hint": "Produktname und Informationen eingeben",
         "label_name": "🏷️ Produktname",
         "choose_location_title": "Welchen Ort?",
-        "choose_location_hint": "Wähle den zu bearbeitenden Ort:"
+        "choose_location_hint": "Wähle den zu bearbeitenden Ort:",
+        "confirm_large_qty": "Du setzt die Menge auf {qty} {unit}. Das scheint ungewöhnlich hoch zu sein. Bestätigen?"
     },
     "screensaver": {
         "recipe_btn": "Rezepte",

translations/en.json

@@ -1086,11 +1086,13 @@
         "offline_ai_disabled": "Not available offline",
         "offline_cache_ready": "Offline — {n} items cached"
     },
+    "confirm_placeholder_search": null,
     "confirm": {
         "remove_item": "Do you really want to remove this product from inventory?",
         "kiosk_exit": "Exit kiosk mode?",
         "cancel": "Cancel",
-        "proceed": "Confirm"
+        "proceed": "Confirm",
+        "discard_one": "Discard 1 piece"
     },
     "location": {
         "dispensa": "Pantry",
@@ -1102,7 +1104,8 @@
         "unknown_hint": "Enter the product name and information",
         "label_name": "🏷️ Product name",
         "choose_location_title": "Which location?",
-        "choose_location_hint": "Choose the location to edit:"
+        "choose_location_hint": "Choose the location to edit:",
+        "confirm_large_qty": "You are setting the quantity to {qty} {unit}. This seems unusually high. Confirm?"
     },
     "screensaver": {
         "recipe_btn": "Recipes",

translations/es.json

@@ -1037,11 +1037,13 @@
         "offline_ai_disabled": "No disponible sin conexión",
         "offline_cache_ready": "Offline — {n} productos en caché"
     },
+    "confirm_placeholder_search": null,
     "confirm": {
         "remove_item": "¿Realmente quieres eliminar este producto del inventario?",
         "kiosk_exit": "¿Salir del modo kiosco?",
         "cancel": "Cancelar",
-        "proceed": "Confirmar"
+        "proceed": "Confirmar",
+        "discard_one": "Tirar 1 unidad"
     },
     "location": {
         "dispensa": "Despensa",
@@ -1053,7 +1055,8 @@
         "unknown_hint": "Introduce el nombre del producto y la información",
         "label_name": "🏷️ Nombre del producto",
         "choose_location_title": "¿Qué ubicación?",
-        "choose_location_hint": "Elige la ubicación a editar:"
+        "choose_location_hint": "Elige la ubicación a editar:",
+        "confirm_large_qty": "Estás configurando la cantidad a {qty} {unit}. Esto parece inusualmente alto. ¿Confirmar?"
     },
     "screensaver": {
         "recipe_btn": "Recetas",

translations/fr.json

@@ -1037,11 +1037,13 @@
         "offline_ai_disabled": "Indisponible hors ligne",
         "offline_cache_ready": "Offline — {n} produits en cache"
     },
+    "confirm_placeholder_search": null,
     "confirm": {
         "remove_item": "Voulez-vous vraiment supprimer ce produit de l'inventaire ?",
         "kiosk_exit": "Quitter le mode kiosque ?",
         "cancel": "Annuler",
-        "proceed": "Confirmer"
+        "proceed": "Confirmer",
+        "discard_one": "Jeter 1 pièce"
     },
     "location": {
         "dispensa": "Garde-manger",
@@ -1053,7 +1055,8 @@
         "unknown_hint": "Entrez le nom du produit et les informations",
         "label_name": "🏷️ Nom du produit",
         "choose_location_title": "Quel emplacement ?",
-        "choose_location_hint": "Choisissez l'emplacement à modifier :"
+        "choose_location_hint": "Choisissez l'emplacement à modifier :",
+        "confirm_large_qty": "Vous définissez la quantité à {qty} {unit}. Cela semble inhabituellement élevé. Confirmer ?"
     },
     "screensaver": {
         "recipe_btn": "Recettes",

translations/it.json

@@ -1090,7 +1090,8 @@
         "remove_item": "Vuoi davvero rimuovere questo prodotto dall'inventario?",
         "kiosk_exit": "Uscire dalla modalità kiosk?",
         "cancel": "Annulla",
-        "proceed": "Conferma"
+        "proceed": "Conferma",
+        "discard_one": "Butta 1 pezzo"
     },
     "location": {
         "dispensa": "Dispensa",
@@ -1102,7 +1103,8 @@
         "unknown_hint": "Inserisci il nome e le informazioni del prodotto",
         "label_name": "🏷️ Nome prodotto",
         "choose_location_title": "Quale modifica?",
-        "choose_location_hint": "Scegli la posizione da modificare:"
+        "choose_location_hint": "Scegli la posizione da modificare:",
+        "confirm_large_qty": "Stai impostando la quantità a {qty} {unit}. Questo sembra un valore insolitamente alto. Confermare?"
     },
     "screensaver": {
         "recipe_btn": "Ricette",