feat(safety): needs attention card on dashboard

Add a "Needs Attention" card above the orders table that surfaces:
- Import errors count (click → ERROR filter)
- Unmapped SKUs count (click → Missing SKUs page)
- Uninvoiced orders >3 days (click → UNINVOICED filter)
Shows green "Totul in ordine" when all metrics are zero.

Backend: add uninvoiced_old count to get_orders() and unresolved_skus
from get_dashboard_stats() to dashboard/orders API response.

Cache-bust: style.css?v=21, dashboard.js?v=29

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/services/sqlite_service.py

@@ -739,6 +739,16 @@ async def get_orders(page: int = 1, per_page: int = 50,
         cursor = await db.execute(f"SELECT COUNT(*) FROM orders {uninv_where}", base_params)
         uninvoiced_sqlite = (await cursor.fetchone())[0]
 
+        # Uninvoiced > 3 days old
+        uninv_old_clauses = list(base_clauses) + [
+            "UPPER(status) IN ('IMPORTED', 'ALREADY_IMPORTED')",
+            "(factura_numar IS NULL OR factura_numar = '')",
+            "order_date < datetime('now', '-3 days')",
+        ]
+        uninv_old_where = "WHERE " + " AND ".join(uninv_old_clauses)
+        cursor = await db.execute(f"SELECT COUNT(*) FROM orders {uninv_old_where}", base_params)
+        uninvoiced_old = (await cursor.fetchone())[0]
+
         return {
             "orders": [dict(r) for r in rows],
             "total": total,
@@ -754,6 +764,7 @@ async def get_orders(page: int = 1, per_page: int = 50,
                 "cancelled": status_counts.get("CANCELLED", 0),
                 "total": sum(status_counts.values()),
                 "uninvoiced_sqlite": uninvoiced_sqlite,
+                "uninvoiced_old": uninvoiced_old,
             }
         }
     finally: