Release v1.7.39: faster barcode lookup, spesa UX, and expiry control.

Parallel resolve_barcode with SQLite cache speeds bulk shopping scans; spesa mode skips to add form. Manual expiry dates persist across location moves; family sibling checks dedupe for 24h. Fixes kiosk crashes, empty barcode UNIQUE errors, and spesa ghost products.

Co-authored-by: Cursor <cursoragent@cursor.com>

assets/css/style.css

@@ -730,7 +730,7 @@ body.server-offline .bottom-nav {
     margin: 0;
     text-transform: uppercase;
     letter-spacing: 0.03em;
-    opacity: 0.8;
+    color: rgba(255, 255, 255, 0.85);
 }
 .family-sibling-prompt-name {
     font-size: 0.95rem;
@@ -743,17 +743,25 @@ body.server-offline .bottom-nav {
     -webkit-line-clamp: 2;
     -webkit-box-orient: vertical;
 }
+.family-sibling-prompt-stock {
+    font-size: 1.05rem;
+    font-weight: 800;
+    line-height: 1.3;
+    margin: 4px 0 0;
+    color: #bbf7d0;
+}
 .family-sibling-prompt-meta {
     font-size: 0.8rem;
     line-height: 1.3;
     margin: 0;
-    opacity: 0.88;
+    color: rgba(255, 255, 255, 0.78);
 }
 .family-sibling-prompt-question {
     font-size: 0.82rem;
     line-height: 1.25;
     margin: 2px 0 0;
-    opacity: 0.9;
+    color: #f8fafc;
+    font-weight: 600;
 }
 .family-sibling-prompt-actions {
     display: flex;