Fix branch error handling#468

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tony wants to merge 3 commits intomasterfrom

fix-branch-error-handling

Commits on Sep 4, 2025

cli/sync(feat[handle_branch_error]): Add branch error detection and user guidance
tony
committed
test(sync): Add comprehensive tests for branch error handling
tony
committed
cli/sync(fix[check_branch_state]): Improve branch validation to detect all upstream issues
tony
committed