fix: decode encoded mini customer headers

src/Api/TakeoutSaaS.MiniApi/Controllers/OrdersController.cs

@@ -82,6 +82,34 @@ public sealed class OrdersController(IMiniAppService miniAppService, ITenantProv
 
     private string ResolveCustomerName()
     {
-        return Request.Headers.TryGetValue("X-Mini-Customer-Name", out var name) ? name.FirstOrDefault()?.Trim() ?? string.Empty : string.Empty;
+        if (!Request.Headers.TryGetValue("X-Mini-Customer-Name", out var name))
+        {
+            return string.Empty;
+        }
+
+        return DecodeHeaderValue(name.FirstOrDefault());
+    }
+
+    private static string DecodeHeaderValue(string? value)
+    {
+        if (string.IsNullOrWhiteSpace(value))
+        {
+            return string.Empty;
+        }
+
+        var trimmed = value.Trim();
+        if (!trimmed.Contains('%'))
+        {
+            return trimmed;
+        }
+
+        try
+        {
+            return Uri.UnescapeDataString(trimmed);
+        }
+        catch
+        {
+            return trimmed;
+        }
     }
 }