Hands-on ergonomics for Bryan's Gundersen testing. All three changes are
backward-compatible — every old name still works.
1. `help` is now the canonical reference command (live, never-drifts table
from bin/ + each tool's help block). `cheat` kept as a thin alias.
2. Prefix-free short commands: nc-table→table, nc-parse→parse, nc-msgs→msgs,
nc-status→status, nc-engine→engine, nc-xlate→xlate, nc-inbound→inbound, plus
the write tools (create-thread, set-field, insert-protocol, make-jump,
provision-jumps, tclgen, document, revisions, diff-interface, smat-diff,
regression). COLLISION GUARD: nc-find→`nfind` (NOT `find` — would shadow the
system find on PATH); nc-paths keeps `paths`. Every nc-* name retained as a
backward-compat alias. Tab-completion + the help/cheat table updated.
3. HCISITEDIR auto-init in the shared preflight (bin/_nc_common.sh): HCIROOT +
HCISITE still required, but $HCIROOT/$HCISITE is created if missing rather
than erroring. Conservative + idempotent; respects an operator-set HCISITEDIR.
VERSION→0.9.6, MANIFEST regenerated (--check clean), bash -n clean.
Co-Authored-By: Clover (Claude Opus 4.8) <noreply@anthropic.com>
