feat: refactor Environment class to remove deprecated variables handling and streamline variable management

Author: lakernote

src/main/java/com/laker/postman/common/component/table/EasyPostmanEnvironmentTablePanel.java

@@ -377,6 +377,11 @@ public DragEnableEditor() {
             checkBox.setHorizontalAlignment(SwingConstants.CENTER);
             checkBox.setOpaque(false);
 
+            // Add ActionListener to immediately commit checkbox changes
+            checkBox.addActionListener(e -> {
+                fireEditingStopped();
+            });
+
             panel.add(dragLabel, BorderLayout.WEST);
             panel.add(checkBox, BorderLayout.CENTER);
 

src/main/java/com/laker/postman/panel/env/EnvironmentPanel.java

@@ -48,8 +48,6 @@
 @Slf4j
 public class EnvironmentPanel extends SingletonBasePanel {
     public static final String SAVE_VARIABLES = "saveVariables";
-    public static final String COLUMN_NAME = "Name";
-    public static final String COLUMN_VALUE = "Value";
     public static final String EXPORT_FILE_NAME = "EasyPostman-Environments.json";
     private EasyPostmanEnvironmentTablePanel variablesTablePanel;
     private transient Environment currentEnvironment;