Two scripts named nomarchy-update shipped from different derivations
(core/system/scripts + features/scripts/utils), both landing on PATH so
which one ran depended on PATH ordering. The core/system one never stripped
the install-time `?rev=` pin and rebuilt a nonexistent `#default` attr,
silently keeping installs frozen instead of following rolling main. Keep the
features/scripts/utils version (unpins, queries upstream HEAD, calls
nomarchy-sys-update) and drop the stale one. Regenerated docs/SCRIPTS.md.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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