Added options page

src/includes/api/cache.php

@@ -0,0 +1,16 @@
+<?php
+session_start();
+if (empty($_SESSION['is_admin'])) exit(json_encode(['error'=>'Not authorized']));
+
+$cacheDir = __DIR__.'/../../cache';
+
+header('Content-Type: application/json');
+
+if(!is_dir($cacheDir)){
+    echo json_encode(['error'=>'Cache folder not found']); exit;
+}
+
+$files = glob($cacheDir.'/*');
+foreach($files as $f){ if(is_file($f)) unlink($f); }
+
+echo json_encode(['message'=>'Cache cleared']);