pub(crate) fn engine_cache_path(cache_dir: &Path) -> PathBufExpand description
Returns the canonical TRT engine-cache directory for a given root cache.
Path is stable across container restarts as long as cache_dir is mounted
at the same location — i.e. for ECS this means a persistent EFS access
point or a host-bind mount. There is no PID, hostname, or container
identifier in the path — that was already true before this change, but
is now centralised here so future callers cannot reintroduce per-container
ephemera.