feat(config): persistent directories, auto-open files, and strict project scope

- Implemented persistent directory memory for Action Model and Dataset generators (per project).
- Added configuration to automatically open generated files in the editor with a customizable limit.
- Enforced strict project-scope file selection for i18n and XSD settings.
- Switched to relative path storage for i18n/XSD configuration to enhance project portability.
- Improved File Browser logic to start at the current directory or fallback to project root.
- Fixed compilation errors and optimized imports in configuration classes.
- Bumped plugin version to 3.2.4.

InspectXSD.java

@@ -0,0 +1,17 @@
+import com.intellij.javaee.ExternalResourceManager;
+import com.intellij.javaee.ExternalResourceManagerEx;
+import java.lang.reflect.Method;
+
+public class InspectXSD {
+    public static void main(String[] args) throws Exception {
+        System.out.println("Methods in ExternalResourceManager:");
+        for (Method m : ExternalResourceManager.class.getMethods()) {
+            System.out.println(m.getName());
+        }
+        System.out.println("---");
+        System.out.println("Methods in ExternalResourceManagerEx:");
+        for (Method m : ExternalResourceManagerEx.class.getMethods()) {
+            System.out.println(m.getName());
+        }
+    }
+}