Two pull UX/correctness fixes: (1) a multi-GB pull with captured
output is minutes of silence reading as a hang -- layer progress now
streams (throttled) to stderr; (2) the mirror-tag -> canonical retag
could fail silently and the following rmi then deleted the ONLY tag,
losing a 342s pull and forcing a full re-download -- retag is now
verified and the mirror tag kept on failure.
Co-Authored-By: Claude <noreply@anthropic.com>
A multi-GB docker pull ran with fully captured output -- minutes of
silence that read as a hang (user interrupted a healthy run over it).
Each mirror attempt now prints which source it is trying and how long
a hit took.
Co-Authored-By: Claude <noreply@anthropic.com>
The preflight did a bare 'docker pull' -- docker.io is slow/unreachable
from CN without luck; it now walks the same fallback chain as the SWE
prefetch (daemon mirrors -> daocloud -> 1ms.run -> baidubce -> sjtu ->
rat.dev), retagging the hit to the canonical name.
Co-Authored-By: Claude <noreply@anthropic.com>
