PESYJE V14.1 — BRANDING CLEANUP

Removed all retired product branding from source, seed data and runtime caches.
System item alias is now pesyje.
.env.example APP_NAME is now Pesyje.
Old demo-domain references are replaced by https://pesyje.com.
Basic, Ayline and Rateon discover text now identifies the platform as Pesyje.
Added a migration that cleans matching legacy branding from an already-installed live database.

After overwrite run:
php artisan migrate --force
php artisan optimize:clear