mos-dt-0andMos
3e47fc076f
The slack knob was interpolated raw into $((...)) under set -u: a malformed value was FATAL to the poll, falsifying the poll-never-fails invariant, and a negative value inverted the guard to deny-all. Shape validation alone was insufficient — bash reads a leading zero as octal, so 08/09 passed the regex yet were fatal and 0300 silently meant 192. Now validated ^[0-9]{1,9}$ with a loud fallback to 300, then forced to base-10 via 10# so the knob means what the operator wrote.
Authored-by: pepper
Reviewed-by: mos-dt (independent, found both the original defect and the radix residual)
Merged-by: Mos
Co-authored-by: mos-dt-0 <[email protected]>