Three changes bundled because the stubs surfaced two pre-existing infra bugs
that had never been hit (the smoke test only exercised PHP via 'docker exec',
not via the full Apache->PHP-FPM FastCGI path).
- src/public/borne/index.html : minimal HTML stub for the kiosk vhost
(200 OK with the imported logo)
- src/public/admin/index.php : minimal PHP stub that proves the full
FastCGI chain works end-to-end (renders PHP_VERSION + current timestamp)
- docker/apache/vhost.conf : add 'DirectoryIndex index.php index.html' on
the admin vhost. Without it, hitting / returned 403 because the default
Apache DirectoryIndex is index.html only, and the existing RewriteRule
did not apply to the directory request (\!-d cond was false).
- docker/php-fpm/www.conf : comment out 'listen.allowed_clients = any'.
PHP-FPM 8.3 rejects 'any' with 'Wrong IP address' and ends up dropping
every connection from Apache. With the directive absent, all connections
are accepted, which is acceptable in our isolated Docker network.
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