Initial commit: Retribusi frontend dengan dashboard, event logs, dan settings

api/dashboard/chart.php.example

@@ -0,0 +1,20 @@
+<?php
+/**
+ * EXAMPLE: Dashboard Chart Endpoint dengan CORS Handler
+ */
+
+// ================= CORS HANDLER (WAJIB PALING ATAS) =================
+header("Access-Control-Allow-Origin: *");
+header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
+header("Access-Control-Allow-Headers: Content-Type, Authorization, X-API-KEY");
+
+if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
+    http_response_code(200);
+    exit;
+}
+// ================= END CORS HANDLER =================
+
+header('Content-Type: application/json');
+
+// ... logic chart yang sudah ada ...
+