[BUG] mod.php does NOT respect $config['board_path'] when managing boards

[hustlerone]

Describe the bug

When managing a board, mod.php tries to access ./BOARD/manage/thread/XXXX.html instead of ./$config['board_path']/BOARD/manage/thread/XXXX.html, thus making it impossible to use on my setup.

Steps to Reproduce

1. Set $config['board_path'] to any subdir
2. Install vichan like normal
3. Try to manage a board (could be /b/ or anything, doesn't matter)
4. Enjoy a `Page not found!' error or an `Invalid board' error.

Expected Behavior

Being able to manage a board stored in a subdir

Server Specifications

- OS: `Linux 6.16.9, NixOS, 25.11 (Xantusia), 25.11.20251002.7df7ff7`
- Architecture: `x86_64-linux`
- Vichan rev: `2c57e84ac5f1bd85dcb5a2dfb44b2d287c290b09`
- Nixpkgs rev: `7df7ff7d8e00218376575f0acdcc5d66741351ee`
- PHP package: `php82` (PHP 8.2.29)
- Web server: `openresty` (Openresty 1.27.1.2)
- Database: `mariadb` (MariaDB 10.11.14)

Additional Context

The files rest onto a read-only filesystem unless they are to be generated by a user. If said file(s) or folders must be changed at runtime, they are substituted with a symlink that points to the real ones outside of the web server's working directory (which rests on a read-only filesystem).

Not having mod.php respect `$config['board_path']` makes it impossible to manage boards.

[perdedora]

yea, thats a known bug unfortunately. will try to look at alternatives in the router