Fixes https://github.com/openai/codex/issues/5485.
Fixed rename hunks so `apply_patch` resolves the destination path using
the verifier’s effective cwd, ensuring patches that run under `cd
<worktree> && apply_patch` stay inside the worktree.
Added a regression test
(`test_apply_patch_resolves_move_path_with_effective_cwd`) that
reproduced the old behavior (dest path resolved in the main repo) and
now passes.
Related to https://github.com/openai/codex/issues/5483.
Co-authored-by: Eric Traut <etraut@openai.com>
