mika kuns
95918414a0
The update pipeline moved app/ and worker/ to .bak before extraction with no retry, so a just-killed worker whose file handles had not been released yet (WaitForExit returns before the OS flushes them) caused Directory.Move to throw ERROR_SHARING_VIOLATION, stopping the pipeline on a cryptic error screen. - DownloadAndExtractStep: stash/rollback moves+deletes now retry through transient IO/access errors (~5s); a persistent lock returns an actionable message instead of the raw error. - StopWorkerStep: reading MainModule no longer skips Kill on failure, and a short settle follows the kill so handles are released before extraction.