feat(proxy): reclaim space from the blob store

The ceiling comparison removes a blob from a store already inside it

Defect 3 / Tier 1 / suggestion

services/proxy/src/sweep.rs:120

Expected review

compare with `>`, so the ceiling is a size the store is allowed to reach.

Discovery difficulty

it is one character, in a condition that also carries the age check, and the cost of being wrong is one blob. Worth finding, not worth blocking on.

Trigger

a store holding exactly `CAIRN_CACHE_MAX_BYTES`. One blob is deleted that should have stayed.

Severity

suggestion

benchee benchee-dashboard-1 built from 10f4ec58 Static benchmark evidence ·