✨ feat(file-check): 忽略无效扫码结果并完善汇报材料

tests/AxiOmron.PcbCheck.Tests/DualScannerResultMergerTests.cs

@@ -35,6 +35,35 @@ public sealed class DualScannerResultMergerTests
         Assert.Contains("扫码枪2", result.RawMessage);
     }
 
+    /// <summary>
+    /// 第一把扫码枪返回 noRead、第二把扫码枪返回有效条码时，应舍弃 noRead 并使用第二把扫码枪结果。
+    /// </summary>
+    [Fact]
+    public void Merge_ShouldUseSecondBarcode_WhenFirstScannerReturnsNoRead()
+    {
+        var first = new ScanOperationResult
+        {
+            IsSuccess = true,
+            DeviceConnected = true,
+            Barcode = "noRead",
+            RawMessage = "noRead"
+        };
+        var second = new ScanOperationResult
+        {
+            IsSuccess = true,
+            DeviceConnected = true,
+            Barcode = "PCB-SECOND",
+            RawMessage = "PCB-SECOND"
+        };
+
+        ScanOperationResult result = DualScannerResultMerger.Merge(first, second);
+
+        Assert.True(result.IsSuccess);
+        Assert.Equal("PCB-SECOND", result.Barcode);
+        Assert.Contains("使用扫码枪2", result.RawMessage);
+        Assert.DoesNotContain("使用扫码枪1", result.RawMessage);
+    }
+
     /// <summary>
     /// 两把扫码枪都成功但内容不一致时，应优先使用扫码枪1条码并保留不一致说明。
     /// </summary>