implemented payment computing for privacy office

src/core/utils/utils.js

@@ -148,3 +148,18 @@ export const getClosedPolygonCoordinates = (polygon) => {
 
     return coordinates;
 };
+
+export function safeParsePolygon(polygonJson) {
+    if (!polygonJson) return null;
+
+    try {
+        const parsed = JSON.parse(polygonJson);
+        if (parsed && parsed.coordinates) {
+            return parsed.coordinates;
+        }
+        return null;
+    } catch (err) {
+        console.error("Invalid polygon JSON:", err);
+        return null;
+    }
+}