Ephemeral per-request SFTP connections, whole-file-in-memory view/edit
with a 50MB cap and binary detection, streaming download for files of
any size, multipart upload. No sudo/permission-elevation or
server-to-server transfer in this pass (documented gaps, matching
Termix's own scope for the latter).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BbJV5nm8KPVH1oNJYKpnoF
