Live on novox 2026-11-12: node-files.list of a root-only directory answered
'fork/exec /usr/bin/sudo: invalid argument'. The kernel refuses a program
argument that holds a NUL byte, and listAsRoot's -printf format and
searchBelowAsRoot's ended in a literal \x00 since 5d98bcc0 (2026-10-16), so
no list or search through root ever ran on a node. find writes \0 itself.
The stand-in root in the tests refuses an argument holding a NUL, as exec
does, so every root call is held to it; it found the search's instance.
Builds: design 39 parts §15 and the lead's answer D3 (list through root of a place a secret is kept).