feat: cruise warning signs and speed limit sign sizing

Cruise warning sign appears above speed limit sign when cruise set
speed is too far from the speed limit:
- Red (over): cruise >= limit + 10 (if limit >= 50) or + 5 (if < 50)
- Green (under): cruise <= limit - 5
- Only when cruise active (not paused/disabled) and limit >= 20
- Nightrider mode: colored text/border on black background

Speed limit sign enlarged 5%. 20px gap between signs. Bench mode
gains cruiseactive command (0=disabled, 1=active, 2=paused).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

selfdrive/controls/controlsd.py

@@ -1284,7 +1284,11 @@ class Controls:
       speed_ms = gps.getSpeed() if has_gps else 0.0
       speed_limit_ms = self.params_memory.get_float("CarSpeedLimit")
       is_metric = (self.params_memory.get("CarIsMetric", encoding="utf-8") or "0") == "1"
-      self.speed_state.update(speed_ms, has_gps, speed_limit_ms, is_metric)
+      cruise_speed_ms = CS.cruiseState.speed
+      cruise_active = CS.cruiseState.enabled
+      cruise_standstill = CS.cruiseState.standstill
+      self.speed_state.update(speed_ms, has_gps, speed_limit_ms, is_metric,
+                              cruise_speed_ms, cruise_active, cruise_standstill)
 
     return CC