reduction of database size

[matin497]

hi. can you make an option to disable user_subscription_update logging? it's a feature that i don't even use and will just increase the database size dramatically ( like record_node_usage ).
also, can you make the panel use the same UUID for vless, vmess, shadow socks and hysteria? this way, there's no need to create 4 proxy users for each user in the database and therefore will decrease database size even more.
when i was using Marzban, the database size was around 2.3 MB with 12k users, in PasarGuard it increased to 15 MB which is harder for me to take backup of ( i also disabled record_node_usage, otherwise it would easily be more than 200 MB )