modeld standby on lat inactive, dashcamd always-on, alert suppression

- modeld: enter standby when latActive=false (not just standstill),
  exception for lane changes (no_lat_lane_change). Fix Python capnp
  property access (.latActive not getLatActive())
- controlsd: move model_suppress computation early, suppress radarFault,
  posenetInvalid, locationdTemporaryError, paramsdTemporaryError during
  model standby + 2s grace period. All cascade from modeld not publishing
- dashcamd: always_run (manages own trip lifecycle), wait for valid frame
  dimensions before encoding (fix SIGSEGV on early start)
- Fan: driving range 15-100% (was 30-100%)

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

selfdrive/controls/controlsd.py

@@ -442,6 +442,13 @@ class Controls:
     # All events here should at least have NO_ENTRY and SOFT_DISABLE.
     num_events = len(self.events)
 
+    # CLEARPILOT: compute model standby suppression early — used by multiple checks below
+    try:
+      standby_ts = float(self.params_memory.get("ModelStandbyTs") or "0")
+    except (ValueError, TypeError):
+      standby_ts = 0
+    model_suppress = (time.monotonic() - standby_ts) < 2.0
+
     not_running = {p.name for p in self.sm['managerState'].processes if not p.running and p.shouldBeRunning}
     if self.sm.recv_frame['managerState'] and (not_running - IGNORE_PROCESSES):
       self.events.add(EventName.processNotRunning)
@@ -459,7 +466,7 @@ class Controls:
       print(f"CLP controlsdLagging: remaining={self.rk.remaining:.4f} standstill={CS.standstill} vEgo={CS.vEgo:.2f}", file=sys.stderr)
       self.events.add(EventName.controlsdLagging)
     if not self.radarless_model:
-      if len(self.sm['radarState'].radarErrors) or (not self.rk.lagging and not self.sm.all_checks(['radarState'])):
+      if not model_suppress and (len(self.sm['radarState'].radarErrors) or (not self.rk.lagging and not self.sm.all_checks(['radarState']))):
         self.events.add(EventName.radarFault)
     if not self.sm.valid['pandaStates']:
       self.events.add(EventName.usbError)
@@ -469,13 +476,6 @@ class Controls:
       self.events.add(EventName.canError)
 
     # generic catch-all. ideally, a more specific event should be added above instead
-    # CLEARPILOT: skip comm check when modeld was recently in standby
-    # ModelStandbyTs is written every 1s while in standby — if < 2s old, suppress
-    try:
-      standby_ts = float(self.params_memory.get("ModelStandbyTs") or "0")
-    except (ValueError, TypeError):
-      standby_ts = 0
-    model_suppress = (time.monotonic() - standby_ts) < 2.0
     has_disable_events = self.events.contains(ET.NO_ENTRY) and (self.events.contains(ET.SOFT_DISABLE) or self.events.contains(ET.IMMEDIATE_DISABLE))
     no_system_errors = (not has_disable_events) or (len(self.events) == num_events)
     if (not self.sm.all_checks() or self.card.can_rcv_timeout) and no_system_errors and not model_suppress:
@@ -499,13 +499,13 @@ class Controls:
       self.logged_comm_issue = None
 
     if not (self.CP.notCar and self.joystick_mode):
-      if not self.sm['liveLocationKalman'].posenetOK:
+      if not self.sm['liveLocationKalman'].posenetOK and not model_suppress:
         self.events.add(EventName.posenetInvalid)
       if not self.sm['liveLocationKalman'].deviceStable:
         self.events.add(EventName.deviceFalling)
-      if not self.sm['liveLocationKalman'].inputsOK:
+      if not self.sm['liveLocationKalman'].inputsOK and not model_suppress:
         self.events.add(EventName.locationdTemporaryError)
-      if not self.sm['liveParameters'].valid and not TESTING_CLOSET and (not SIMULATION or REPLAY):
+      if not self.sm['liveParameters'].valid and not TESTING_CLOSET and (not SIMULATION or REPLAY) and not model_suppress:
         self.events.add(EventName.paramsdTemporaryError)
 
     # conservative HW alert. if the data or frequency are off, locationd will throw an error