No sidecar code change. Ships hyper-deploy 0.4.12, which builds the overlay lookup maps once per manifest instead of once per inbound connection -- measured at 3.8 MB of garbage and ~79,000 map insertions per connection on tabertron's 39,484-file tree store. A CPU/GC tidy-up, not a memory fix. The leak was _paired, fixed in 0.4.11 and confirmed here over 26 minutes: 4594 MB -> 4344 MB declining under 36 churn events, against +315 MB/min unfixed. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>