Expand description
Engine lifecycle — settings/workspace-root setters, runtime mem add/remove, reload, and export.
register_writable_mem / unregister_writable_mem are the
engine-level primitives the memstead_mem_create / memstead_mem_delete
handlers build on. reload_one_mem* re-reads a mount’s backend
and refreshes the in-memory store; reload_each_writable_mem*
sweeps every writable mount. export_markdown regenerates entity
markdown for folder mounts; export_mem produces a portable
.mem archive via the backend-aware dispatch in
crate::ops::export.