port C++ UI from broken: ready/splash, ClearPilot menu, onroad widgets, nightrider

Wholesale port of the 10 UI files (main.cc, ui.{cc,h}, onroad.{cc,h},
home.{cc,h}, window.{cc,h}, ready.{cc,h}, SConscript). sidebar.{cc,h}
unchanged.

Brings in:
- splash/ready screen rendered via Qt directly (replaces stock home)
- ready page shown when started but gear=park
- ClearPilot offroad menu (Home/Dashcam/Debug panels) replacing stock
- onroad UI: speed widget reading ClearpilotSpeedDisplay (gpsLocation
  via speed_logicd), speed-limit widget, cruise-vs-limit warning sign
- nightrider mode: camera suppressed, lane lines/path drawn as 2px
  outlines only (ScreenDisplayMode 1 or 4)
- screen power: ScreenDisplayMode 3 forces setAwake(false)
- ignition off blanks screen immediately (tap still wakes)
- Qt-based RPC widget-tree dump server at ipc:///tmp/clearpilot_ui_rpc
- crash handler in main.cc with stack trace

Deviation from broken (3 sites): no_lat_lane_change is read from
paramsMemory (controlsd writes it there in baseline) instead of broken's
custom cereal field frogpilotCarControl.noLatLaneChange. Keeps the
existing self-driving wiring intact.

SConscript drops screenrecorder.cc from qt_src (broken did the same;
omx_encoder.cc still built for dashcamd's future link).

Build clean. UI hasn't been launched yet — that comes after the
controlsd button-handler commit lands.

Translation .ts files are auto-regenerated by Qt's lupdate; included.

selfdrive/ui/qt/home.h

@@ -1,9 +1,11 @@
 #pragma once
 
+#include <QButtonGroup>
 #include <QFrame>
 #include <QLabel>
 #include <QPushButton>
 #include <QStackedLayout>
+#include <QStackedWidget>
 #include <QTimer>
 #include <QWidget>
 
@@ -16,32 +18,23 @@
 #include "selfdrive/ui/qt/widgets/offroad_alerts.h"
 #include "selfdrive/ui/ui.h"
 
-class OffroadHome : public QFrame {
+class ClearPilotPanel : public QFrame {
   Q_OBJECT
 
 public:
-  explicit OffroadHome(QWidget* parent = 0);
+  explicit ClearPilotPanel(QWidget* parent = 0);
 
 signals:
   void openSettings(int index = 0, const QString &param = "");
+  void openStatus();
+  void closePanel();
+
+public:
+  void resetToGeneral();
 
 private:
-  void showEvent(QShowEvent *event) override;
-  void hideEvent(QHideEvent *event) override;
-  void refresh();
-
-  Params params;
-
-  QTimer* timer;
-  ElidedLabel* version;
-  QStackedLayout* center_layout;
-  UpdateAlert *update_widget;
-  OffroadAlert* alerts_widget;
-  QPushButton* alert_notif;
-  QPushButton* update_notif;
-
-  // FrogPilot variables
-  ElidedLabel* date;
+  QStackedWidget *panel_widget;
+  QButtonGroup *nav_group;
 };
 
 class HomeWindow : public QWidget {
@@ -53,6 +46,7 @@ public:
 
 signals:
   void openSettings(int index = 0, const QString &param = "");
+  void openStatus();
   void closeSettings();
 
 public slots:
@@ -67,17 +61,18 @@ protected:
 
 private:
   Sidebar *sidebar;
-  OffroadHome *home;
+  ClearPilotPanel *home;
   OnroadWindow *onroad;
   DriverViewWindow *driver_view;
   QStackedLayout *slayout;
 
   // FrogPilot variables
   Params params;
+  Params paramsMemory{"/dev/shm/params"};
 
   // CLEARPILOT
-  // bool show_ready;
   ReadyWindow *ready;
+  bool was_parked_onroad = false;
 
 private slots:
   void updateState(const UIState &s);