* fix: resume collected agents before pane actions
* fix(server): keep archived agents closed during pane actions
An archive could win while a collected agent was resuming, then lose when the provider runtime registered. Recheck persisted archive state after registration and close the resumed runtime before any mutation runs.
* fix(server): fence archived agents after shared resume
Protected pane actions could join a resume started by an ordinary loader and skip the archive fence. Recheck persisted lifecycle state for every protected caller so archive always wins before mutation.
