{# data-osprey-storage-scope is present ONLY on a multi-user mount
(/u//), where every user shares one origin and therefore one
localStorage. It is THE source of truth for the storage namespace — this
page's module closure reaches the PTY-session, dock-layout and
rail-position keys, and those readers take the namespace from here rather
than parsing the URL. Absent means single-user: keys stay unscoped. Never
emit it empty. See resolve_storage_scope() in app.py. -#}
OSPREY — Activity