Package postflight now verifies every bundled child extension declared
in the manifest actually landed in #__extensions before enqueueing the
license/next-steps message. If any child is missing it enqueues an error
and returns instead of reporting a false success. Verification fails open
so a transient DB/IO glitch never turns a good install into a false
failure. Housekeeping (download-key restore) still runs unconditionally.
Claude-Session: https://claude.ai/code/session_01B9aZHSWbiiZykJD88pYx8R