compare-export.ts per the ocap style guide (dckc/awesome-ocap,
style-guide/): main takes standard authorities under standard names as
default arguments — argv, fs, connect, now, stdout, stderr, exit (the
transitional form of _script_io) — and attenuates them itself:
connect(dbPath) to a read-only cacheItems, the output directory to an
outDir that writes only plain file names inside it. Counts go to
stdout (program output), usage to stderr.
Generated-by: Claude Opus 5.5