Method EnsureArchiveDownloaded
EnsureArchiveDownloaded(string, string)
Non-interactive download for CI/build automation. Checks if the archive is already present and up-to-date; downloads only if missing or outdated. Safe to call in batch mode — no dialogs, no progress bars, no user prompts. Returns true if the archive is ready (pre-existing or freshly downloaded).
public static Task<bool> EnsureArchiveDownloaded(string platformKey, string filename)