dops.fish defined `docker`, not `dops`. dops was never defined; docker
was only conditionally defined as a side effect of the failed dops
autoload, so its behavior could silently change mid-session. See
JOB-BRIEF-FINDINGS.md §1.
- functions/dops.fish now defines dops: a real enhanced `docker ps`
listing (custom Names/Image/Status/Ports table), with its own --help.
- functions/docker.fish is a new file holding the ps-redirect wrapper,
fixed to actually call dops (previously called the still-undefined
dops from inside itself).
- Bare `docker` with no arguments no longer falls through an
if-with-no-else (the fish false-zero, AGENTS.md standing gotcha #5)
and does nothing; it now runs the real docker binary, which prints
its own usage.
- tests/functional.fish: updated the now-stale comment explaining why
the help-flag check resolves the real function name instead of the
file stem.
