When the hosting provider (GitHub) reports conflicts but a local merge
simulation is clean, we now mark the conflict summary as locally clean.
This state is surfaced in both the desktop and mobile sidebars with a
clear explanation and a copyable set of commands to trigger a remote
mergeability recalculation via an empty commit and push.
- Add PRConflictSummary type and derive conflict metadata (base ref,
commits behind, conflicting files) via local git merge-tree
- Fix parseUnmergedEntry to use space-separated parsing (porcelain v2
unmerged entries are not tab-separated)
- Enhance rebase detection by checking rebase-merge/ and rebase-apply/
directories in addition to REBASE_HEAD
- Show conflicting files list and commits-behind count in ChecksPanel
- Disable merge button with tooltip when PR has conflicts
- Add operation banners (merge/rebase/cherry-pick) in SourceControl
and WorktreeCard
- Reorder section list so unstaged changes appear above staged
- Extract conflict-summary, issues, and gh-utils into separate modules
- Add 10s timeout to git fetch in conflict summary derivation
- Fix test fixtures to match real porcelain v2 format