pg_dump inside the container failed with "could not open output file
C:/Users/.../Temp/studioflow_migration_....dump" - Git Bash/MSYS was
rewriting the /tmp/... argument into a Windows path before handing it
to docker.exe, even though it's meant to be interpreted inside the
Linux container. MSYS_NO_PATHCONV=1 stops that translation.
One-time tool: dumps the local dev Postgres, scp's it to the server,
and restores it into the remote postgres container over SSH - drops
and recreates the target database, so it prompts for an explicit YES
before touching the remote side. Connection details are placeholders
(SSH_USER/SSH_HOST/etc.) filled in via env vars or direct edits, never
committed with real values.