fixed conv problem and now it has cos sim 1

cimp/resnet/resnet.cpp

@@ -238,7 +238,6 @@ std::map<std::string, torch::Tensor> ResNetImpl::forward(torch::Tensor x) {
     };
 
     x = conv1->forward(x);
-    if (should_output("conv1_output")) outputs["conv1_output"] = x;
     if (should_output("debug_resnet_conv1_output_for_bn1_input")) {
         outputs["debug_resnet_conv1_output_for_bn1_input"] = x.clone(); 
     }
@@ -255,6 +254,9 @@ std::map<std::string, torch::Tensor> ResNetImpl::forward(torch::Tensor x) {
     x = relu->forward(x); 
     if (should_output("relu1_output")) outputs["relu1_output"] = x; 
     
+    // Save conv1_output AFTER bn1 and relu (matching Python behavior)
+    if (should_output("conv1_output")) outputs["conv1_output"] = x;
+    
     torch::Tensor x_pre_layer1 = maxpool->forward(x);
     if (should_output("maxpool_output")) outputs["maxpool_output"] = x_pre_layer1;