Update .gitignore to include /.ignore and modify cd.sh to save kubeconfig in $HOME/.kube/config

.gitignore

@@ -22,3 +22,5 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+/.ignore

script/cd.sh

@@ -66,7 +66,7 @@ setup_kubeconfig() {
     
     # Create temporary kubeconfig file from base64 encoded data
     echo "Decoding kubeconfig..."
-    echo "$KUBECONFIG_DATA" | base64 -d > /tmp/kubeconfig
+    echo "$KUBECONFIG_DATA" | base64 -d > $HOME/.kube/config
     
     # Set KUBECONFIG environment variable to use the temporary file
     export KUBECONFIG=/tmp/kubeconfig