The previous loop used Bash glob expansion (lexicographic order) and
stopped at the first match, so environments with multiple Node installs
could select an older runtime (e.g. v18 before v22).
Extract the nvm resolution into a shared scripts/pre-commit/resolve-node.sh
that pipes `ls` output through `sort -V | tail -1` to select the
semantically newest version. Both pre-commit and run-node-tool.sh now
source the shared script, eliminating the duplicated logic.
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