fix: bilancia ricette attende ≥5g di variazione; sale spurio in Bring!

- Recipe use modal: reset _scaleLastConfirmedGrams al peso attuale prima
  di aprire il modale, così la tara ha tempo; soglia ridotta 10→5g
- PHP useFromInventory: prima di auto-aggiungere a Bring! un prodotto esaurito,
  controlla se la famiglia shopping_name ha scorte da altri prodotti (es.
  'Sale marino iodato' esaurito ma 3kg di altri sali in dispensa → non aggiunge)
  JS, così il cron bringCleanupObsolete può auto-rimuovere
- Rimosso manualmente 'Sale' da Bring! (aggiunto senza marker dalla vecchia logica)

api/index.php

@@ -1374,6 +1374,26 @@ function useFromInventory(PDO $db): void {
             $product = $stmt->fetch();
             
             if ($product) {
+                // Before adding to Bring!, check if the shopping_name family already
+                // has adequate stock from OTHER products (e.g. "Sale marino iodato" depleted
+                // but "Sale alimentare" has 1kg → no need to add to shopping list).
+                $sNameKey = strtolower(trim($product['shopping_name'] ?? ''));
+                $familyCoverage = 0;
+                if ($sNameKey !== '') {
+                    $covStmt = $db->prepare("
+                        SELECT SUM(i.quantity)
+                        FROM inventory i
+                        JOIN products p ON i.product_id = p.id
+                        WHERE LOWER(TRIM(p.shopping_name)) = ? AND i.product_id != ? AND i.quantity > 0
+                    ");
+                    $covStmt->execute([$sNameKey, $productId]);
+                    $familyCoverage = (float)($covStmt->fetchColumn() ?: 0);
+                }
+                if ($familyCoverage > 0) {
+                    // Family has stock — no need to restock, suppress Bring! add.
+                    // Set addedToBring=true so the JS fallback is also suppressed.
+                    $addedToBring = true;
+                } else {
                 try {
                     $auth = bringAuth();
                     if ($auth) {
@@ -1399,9 +1419,10 @@ function useFromInventory(PDO $db): void {
                             $addedToBring = false;
                         } else {
                         // Specification: specific product name (and brand) so the user knows which variant
+                        // Add 🛒 marker so the cron cleanup can auto-remove if no longer needed.
                         $spec = $genericName !== $product['name']
-                            ? $product['name'] . ($product['brand'] ? ' · ' . $product['brand'] : '')
-                            : ($product['brand'] ?: $product['name']);
+                            ? $product['name'] . ($product['brand'] ? ' · ' . $product['brand'] : '') . ' · 🛒 Esaurito'
+                            : ($product['brand'] ?: $product['name']) . ' · 🛒 Esaurito';
                         $body = http_build_query([
                             'uuid' => $listUUID,
                             'purchase' => $bringName,
@@ -1420,6 +1441,7 @@ function useFromInventory(PDO $db): void {
                 } catch (Exception $e) {
                     // Silently fail — don't block inventory operation
                 }
+                } // end else (family not covered)
             }
         }
     }

assets/js/app.js

@@ -624,8 +624,9 @@ function _scaleAutoFillRecipeUse(msg) {
         return;
     }
 
-    // Reject if weight hasn't changed enough from last confirmed reading
-    if (_scaleLastConfirmedGrams !== null && Math.abs(grams - _scaleLastConfirmedGrams) < 10) {
+    // Reject if weight hasn't changed enough from last confirmed reading.
+    // Threshold: 5g — gives enough time to tare after opening the modal.
+    if (_scaleLastConfirmedGrams !== null && Math.abs(grams - _scaleLastConfirmedGrams) < 5) {
         return;
     }
 
@@ -7651,8 +7652,8 @@ function showLowStockBringPrompt(result, afterCallback) {
         // configured, or product already on list), silently attempt it from JS.
         if (!result.added_to_bring && shoppingName) {
             // Fire-and-forget — don't block the callback
-            // Use generic shopping name; specific name goes into specification.
-            const spec = shoppingName !== name ? name + (result.product_brand ? ` · ${result.product_brand}` : '') : '';
+            // Use generic shopping name; specific name + 🛒 marker in spec so cron cleanup can auto-remove.
+            const spec = (shoppingName !== name ? name + (result.product_brand ? ` · ${result.product_brand}` : '') : name) + ' · 🛒 Esaurito';
             (async () => {
                 try {
                     const payload = { items: [{ name: shoppingName, specification: spec }] };
@@ -11150,7 +11151,16 @@ async function useRecipeIngredient(idx, productId, location, qtyNumber, btn, rec
     
     _recipeUseContext = { idx, productId, btn, qtyNumber, recipeQty };
     _recipeUseConfMode = null;
-    
+
+    // Reset scale state: set the current weight as baseline so only a *change*
+    // of ≥5g after the modal opens triggers auto-fill (allows time to tare).
+    _cancelScaleAutoConfirm(false);
+    _scaleRecipeAutoFillPaused = false;
+    if (_scaleLatestWeight) {
+        const _baseline = _scaleToGrams(parseFloat(_scaleLatestWeight.value), _scaleLatestWeight.unit);
+        if (_baseline !== null && _baseline >= 5) _scaleLastConfirmedGrams = _baseline;
+    }
+
     // Fetch inventory to build the modal
     try {
         const data = await api('inventory_list');

index.html

@@ -1462,6 +1462,6 @@
     </div>
 </div>
 
-<script src="assets/js/app.js?v=20260510j"></script>
+<script src="assets/js/app.js?v=20260510k"></script>
 </body>
 </html>