450 existed as two independent Rust constants (RPC gates vs boot
reconciler) linked only by a "keep in lockstep" comment — updating one
would reopen the disk-fill hole. Move it to crate::constants as the
single source of truth both paths import.
Also raise apps/cuprate/manifest.yml storage dependency and disk_limit
from 300Gi to 450Gi so manifest-driven surfaces (store size, pre-checks)
show the number the gate actually enforces — a user provisioning to the
displayed 300 was refused at an unexplained 450. Catalog regenerated
(cuprate entry re-embedded; still unsigned pending sign-catalog.sh).
ssmithxandarchipelago
86052d9552