monopam: drop redundant prefixes, finish E010 nesting cleanup
Renames: import_message -> subtree_message; push_via_path -> via_path;
push_via_split -> via_split; push_results -> to_checkout_results;
make_local_results -> local_results.
Add Common.with_eio_verse to wrap the
Eio_main.run / with_config / with_verse_config / Switch.run chain so
cherrypick_run, diff_run, and pull_run in cmd_verse.ml become a single
expression instead of a 5-deep callback ladder. The wrapper itself
delegates to a [run_with_configs] helper to keep its own depth in
range.
monopam now reports zero merlint issues across 69 rules.