Nexus upgrade design and refresh

modules/mining-checker/bootstrap.php

@@ -0,0 +1,16 @@
+<?php
+declare(strict_types=1);
+
+spl_autoload_register(static function (string $class): void {
+    $prefix = 'Modules\\MiningChecker\\';
+    if (!str_starts_with($class, $prefix)) {
+        return;
+    }
+
+    $relativeClass = substr($class, strlen($prefix));
+    $file = __DIR__ . '/src/' . str_replace('\\', '/', $relativeClass) . '.php';
+
+    if (is_file($file)) {
+        require_once $file;
+    }
+});