v1.7.8: usa ingredienti dalla chat

- Nuovo endpoint chat_extract_recipe: Gemini estrae solo nomi+quantità
  con prompt minimo (nessun inventario nel prompt → niente troncamento),
  poi PHP fuzzy-match contro l'inventario completo identico a generateRecipe
- Frontend: _looksLikeRecipe() rileva risposte chat con ricetta;
  bottone '🥄 Usa ingredienti' appare sotto la bubble, chiama chatExtractIngredients()
  che mostra pannello inline con pulsanti '📦 Usa' per ogni ingrediente in dispensa
- useRecipeIngredient() riusato 1:1 con fallback _chatRecipeTitle per le note
- Stili CSS: btn-chat-use-recipe, chat-recipe-panel, chat-recipe-panel-container
- Chiavi i18n: use_ingredients_btn, recipe_ingredients_from_pantry (it/en/de)

assets/css/style.css

@@ -5630,6 +5630,51 @@ body.cooking-mode-active .app-header {
     30% { transform: translateY(-6px); opacity: 1; }
 }
 
+/* ====== Chat Recipe Ingredient Panel ====== */
+.btn-chat-use-recipe {
+    display: inline-block;
+    margin-top: 10px;
+    padding: 7px 14px;
+    background: var(--card-bg, #1e293b);
+    border: 1px solid #6366f1;
+    color: #a5b4fc;
+    border-radius: 20px;
+    font-size: 0.82rem;
+    cursor: pointer;
+    transition: all 0.15s;
+}
+.btn-chat-use-recipe:hover {
+    background: #312e81;
+    color: white;
+}
+.btn-chat-use-recipe:disabled {
+    opacity: 0.6;
+    cursor: default;
+}
+
+.chat-recipe-panel-container {
+    margin-top: 8px;
+}
+
+.chat-recipe-panel {
+    background: var(--card-bg, #1e293b);
+    border: 1px solid rgba(99,102,241,0.3);
+    border-radius: 12px;
+    padding: 12px 14px;
+    margin-top: 4px;
+}
+
+.chat-recipe-panel-title {
+    font-size: 0.9rem;
+    margin-bottom: 4px;
+}
+
+.chat-recipe-panel-subtitle {
+    font-size: 0.75rem;
+    color: var(--text-muted, #94a3b8);
+    margin-bottom: 10px;
+}
+
 /* ====== Recipe Archive ====== */
 .recipe-archive {
     display: flex;