fix: fan 100% on overheat, FCW fps-aware, commIssue suppress, 10min shutdown

- Fan controller: allow full 100% fan when offroad temp >= 75°C (startup cooling)
- ModelFps memory param: modeld publishes actual FPS (20 or 4) so downstream
  consumers can adjust frame-rate-dependent logic
- Longitudinal planner: dynamically adjusts dt and v_desired_filter based on
  ModelFps; FCW crash_cnt threshold scales with FPS to maintain consistent
  0.15s trigger window at both 20fps and 4fps
- controlsd: suppress commIssue alerts for 2s after lateral control engages
  (FPS transition from 4->20 causes transient freq check failures)
- Shutdown timer: hardcoded to 10 minutes (was 45min via FrogPilot param),
  screen taps reset the countdown via ShutdownTouchReset memory param,
  removed Shutdown Timer UI selector from ClearPilot menu

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

selfdrive/ui/qt/home.cc

@@ -179,13 +179,6 @@ static const char *clpSidebarBtnStyle = R"(
 
 // clpActionBtnStyle removed — no longer used
 
-// Shutdown timer: param value -> display label
-static QString shutdownLabel(int val) {
-  if (val == 0) return "5 mins";
-  if (val <= 3) return QString::number(val * 15) + " mins";
-  int hours = val - 3;
-  return QString::number(hours) + (hours == 1 ? " hour" : " hours");
-}
 
 ClearPilotPanel::ClearPilotPanel(QWidget* parent) : QFrame(parent) {
   // Sidebar
@@ -256,27 +249,6 @@ ClearPilotPanel::ClearPilotPanel(QWidget* parent) : QFrame(parent) {
   });
   general_panel->addItem(resetCalibBtn);
 
-  // Shutdown Timer
-  int cur_shutdown = Params().getInt("DeviceShutdown");
-  auto shutdownBtn = new ButtonControl("Shutdown Timer", shutdownLabel(cur_shutdown),
-    "How long the device stays on after the car is turned off.");
-  connect(shutdownBtn, &ButtonControl::clicked, [=]() {
-    QStringList options;
-    for (int i = 0; i <= 33; i++) {
-      options << shutdownLabel(i);
-    }
-    int current = Params().getInt("DeviceShutdown");
-    QString sel = MultiOptionDialog::getSelection("Shutdown Timer", options, shutdownLabel(current), this);
-    if (!sel.isEmpty()) {
-      int idx = options.indexOf(sel);
-      if (idx >= 0) {
-        Params().putInt("DeviceShutdown", idx);
-        shutdownBtn->setValue(shutdownLabel(idx));
-      }
-    }
-  });
-  general_panel->addItem(shutdownBtn);
-
   // Power buttons
   QHBoxLayout *power_layout = new QHBoxLayout();
   power_layout->setSpacing(30);