* fix(daemon): handle diverged sync branch with fetch-rebase-retry on push
When pushing to the sync branch, if the remote has newer commits that
the local worktree doesn't have, the push would fail with "fetch first"
error and the daemon would log the failure without recovery.
Bug scenario:
1. Clone A pushes commit X to sync branch
2. Clone B has local commit Y (not based on X)
3. Clone B's push fails with "fetch first" error
4. Without this fix: daemon logs failure and stops
5. With this fix: daemon fetches, rebases Y on X, and retries push
This fix adds fetch-rebase-retry logic to gitPushFromWorktree():
1. Detect push rejection due to remote having newer commits
2. Fetch the latest remote sync branch
3. Rebase local commits on top of remote
4. Retry the push
If rebase fails (e.g., due to conflicts), the rebase is aborted and
an error is returned with helpful context.
This allows multiple clones to push to the same sync branch without
manual intervention, as long as the changes don't conflict.
Adds integration test TestGitPushFromWorktree_FetchRebaseRetry that
verifies the fetch-rebase-retry behavior with diverged branches.
* fix: resolve all golangci-lint errors (cherry-pick from fix/linting-errors)
Cherry-picked linting fixes to ensure CI passes.
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Co-authored-by: Charles P. Cross <cpdata@users.noreply.github.com>
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