IdleConfig: ConfigSelectionArray presets (30s/1/2/5/10 min for the shell's
timers, 15s/30s/1/5 min/Never for the lock screen) instead of seconds
spinboxes. Nobody reasons about a lock screen in 5s increments; the policy
struct already said "iOS Auto-Lock shape". Wire values stay seconds.
Header comment corrected — hypridle no longer owns screen-off.
set_panel(false) clears pending_blank. A panel darkened by any other route
left it armed, so the next tick emitted a second Blank or hit the
blank-without-lock error path for a blank nobody was waiting on.
SetPolicy refuses dim_grace >= lock_blank_after. dim_at saturates to zero, so
the panel dimmed the instant it went idle with no lit period.
Verified by rendering the page, not by parse alone.
70a05819e8