4ae3ed3fdd
The Topology page has loaded lazily (bounded instance pages behind 'Load
instances' loaders) since 9ee402bb (2026-09-09); TopologyAreaTests was
updated then but DeploymentActionTests still relied on one Expand-all click
revealing instance rows, so all four facts timed out locating the row. Move
OpenStableTopologyAsync into TopologyPageHelper and use it from both.