UHQS/ctf3

fix: auto-cleanup old secondary flags on DB connection

fix: replace secondary flags in sql schema with dummy passwords

fix: only generate and store one flag

fix: read db name, user and pass from environment in entrypoint

fix: run MariaDB as root user inside the container

fix: use --no-defaults for MariaDB to prevent system permission issues

fix: change DB user host to wildcard % for TCP connection compatibility

fix: make MariaDB entrypoint non-root compatible for Hugging Face

fix: embed MariaDB in container for HF Spaces deployment

Corriger la connexion BDD avec fallback robuste et securiser les requetes

Remove CTF banner and add silent user_id URL capture

Add Hugging Face Space metadata

Initial commit ctf3