Created controller for saving app data to CSV

src/main/java/cvbuilder/controller/CsvExportSettings.java

@@ -0,0 +1,33 @@
+package cvbuilder.model;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class CsvExportSettings {
+    private static CsvExportSettings instance;
+    private Map<String, Boolean> includeMap = new HashMap<>();
+
+    private CsvExportSettings() {
+        // Initialize default values for all fields to be included
+        includeMap.put("title", true);
+        includeMap.put("name", true);
+        includeMap.put("email", true);
+        includeMap.put("phone", true);
+        includeMap.put("address", true);
+    }
+
+    public static CsvExportSettings getInstance() {
+        if (instance == null) {
+            instance = new CsvExportSettings();
+        }
+        return instance;
+    }
+
+    public void setInclude(String fieldName, boolean include) {
+        includeMap.put(fieldName.toLowerCase(), include);
+    }
+
+    public boolean isIncluded(String fieldName) {
+        return includeMap.getOrDefault(fieldName.toLowerCase(), true);
+    }
+}