세션 경로 하드코딩 제거

kngil/bbs/env.php

@@ -67,6 +67,18 @@ function kngil_start_session(): void
 
     $params = session_get_cookie_params();
     $samesite = $params['samesite'] ?? 'Lax';
+    $cookieName = session_name();
+
+    if (!empty($_COOKIE[$cookieName])) {
+        setcookie($cookieName, '', [
+            'expires' => time() - 3600,
+            'path' => '/kngil',
+            'domain' => $params['domain'],
+            'secure' => $params['secure'],
+            'httponly' => $params['httponly'],
+            'samesite' => $samesite,
+        ]);
+    }
 
     session_set_cookie_params([
         'lifetime' => $params['lifetime'],