adding small page to show all users

app-code/api/manage/fetch_users.php

@@ -0,0 +1,38 @@
+<?php
+header('Content-Type: application/json');
+session_start();
+//check for permisisons
+if (!isset($_SESSION["logged_in"]) || $_SESSION["logged_in"] !== true || $_SESSION["permissions"][0]!=="1" ) {
+    echo(json_encode(['success' => false, 'message'=>'not authenticated']));
+    exit();
+}
+include "../../config/config.php";
+
+$conn = new mysqli($DB_SERVERNAME, $DB_USERNAME, $DB_PASSWORD, $DB_DATABASE);
+
+if ($conn->connect_error) {
+    echo json_encode(['success' => false, 'message' => 'Database connection failed: ' . $conn->connect_error]);
+    exit;
+}
+
+$query = "SELECT id, username FROM users";
+$stmt = $conn->prepare($query);
+
+if (!$stmt) {
+    echo json_encode(['success' => false, 'message' => 'Failed to prepare statement']);
+    exit;
+}
+
+$stmt->execute();
+$result = $stmt->get_result();
+$users = [];
+
+while ($row = $result->fetch_assoc()) {
+    $users[] = $row;
+}
+
+$stmt->close();
+$conn->close();
+
+echo json_encode(['success' => true, 'data' => $users]);
+?>