When josh-proxy rejects a reverse sync push due to unmappable merge
commits, fall back to linearizing: cherry-pick regular commits
individually, squash only the merge commits via cherry-pick -m 1.
Also adds a recommended Git workflow section to the guide explaining
where cross-branch merges should happen (monorepo) vs feature work
(subrepo), and expands troubleshooting for the "josh rejected push"
error with root cause analysis and prevention advice.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
SBPro
d6f334b861