Remove the R1 slot-controller ties from the C2-14 fixture: the ROW227_CONTROL_ROOT
check, the native permit wait in bindLaunch, the fixture-cleanup.json write, the
priority.mjs preload and the owned-bwrap.sh override. The launcher uses its own bwrap.
The shell runs the driver from an explicit env -i environment (PATH, LANG, a sandbox
HOME, XDG dirs and TMPDIR, MOSAIC_CONFIG, no global git config) as its own process
group. On a signal the driver gets 3 s by the clock, then its group and any process
whose cwd is in the sandbox get SIGKILL, inside the landing gate's 5 s grace.
The fixture credentials are defined only in scripts/case2/fixture-credentials.mjs.
The new scripts/case2/leak-check.mjs reads them from there and never prints them.
jason.woltje
04e1ce24cc