- Favicon: 🚀 emoji via inline SVG data URI, both sokoban.html and php/index.php
- api.php: mb_substr() -> substr() (mbstring not enabled on the server)
- api.php: MariaDB rejects LIMIT directly inside NOT IN(...) (error 1235) —
wrap the top-5 subquery in an extra derived-table SELECT
Verified live against the deployed MySQL/MariaDB DB: whoami, set_name,
submit (insert + dedup + trim-to-5), top all round-trip correctly.
Alex Cube
4ac392a9ab