added terminal interface as default. old website as no-js fallback

terminal/api/_bootstrap.php

@@ -0,0 +1,27 @@
+<?php
+declare(strict_types=1);
+
+header('Content-Type: application/json; charset=utf-8');
+header('X-Content-Type-Options: nosniff');
+
+$rootDir = dirname(__DIR__, 2);
+if (!is_dir($rootDir)) {
+    http_response_code(500);
+    echo json_encode(['error' => 'Invalid root directory'], JSON_UNESCAPED_SLASHES);
+    exit;
+}
+
+function json_out(array $data, int $status = 200): void
+{
+    http_response_code($status);
+    try {
+        echo json_encode(
+            $data,
+            JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR
+        );
+    } catch (Throwable $e) {
+        http_response_code(500);
+        echo '{"error":"JSON encoding failed"}';
+    }
+    exit;
+}