pub fn memory_clear_step(streak: u32, evidence: bool) -> (u32, bool)Expand description
Pure congestion-memory step: fold one window’s evidence (clean at-or-above last_bad) into the running streak. Returns the new
streak and whether the memory clears on this window. Any window
without that evidence — a breach, a dead-band hold, or a clean
window still below the congestion point — resets the streak.