Add git helper functions for merge request conflict checking: - FetchBranch(remote, branch): fetch a specific branch from remote - CheckConflicts(source, target): test merge to detect conflicts - Returns list of conflicting files without modifying working directory - runMergeCheck helper to capture stdout (where CONFLICT appears) Tests cover clean merges, conflicting merges, and working dir cleanup. Closes gt-3x1.2 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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7.8 KiB