Ancestor groups of the active target now show a hollow bolt beside the
existing filled bolt on the target itself, in the servers tree, the
favorites table and the home target browser; the node detail subtitle
shows "含活动目标". The derivation lives in
CatalogTreeSnapshot.ancestors(of:) so every surface shares one rule
while activeTargetID stays a runtime fact outside the catalog
projection. Groups activated directly keep the filled bolt and leave
their member rows unmarked.
Qiu Yuzhou