reset to pre-modification baseline; restart feature work from clean state

Restoring the working tree to the pristine pre-Claude baseline previously
preserved at /data/clearpilot (now /data/clearpilot-baseline). The prior
modified-but-broken tree is snapshotted at /data/openpilot-broken-2026-05-03
and tagged here as pre-reset-2026-05-03 for reference.

From here, features (UI changes, dashcam, telemetry, GPS, display modes,
speed logic, standstill power saving, etc.) will be re-introduced one at
a time with proper testing.

selfdrive/ui/qt/home.h

@@ -1,11 +1,9 @@
 #pragma once
 
-#include <QButtonGroup>
 #include <QFrame>
 #include <QLabel>
 #include <QPushButton>
 #include <QStackedLayout>
-#include <QStackedWidget>
 #include <QTimer>
 #include <QWidget>
 
@@ -18,23 +16,32 @@
 #include "selfdrive/ui/qt/widgets/offroad_alerts.h"
 #include "selfdrive/ui/ui.h"
 
-class ClearPilotPanel : public QFrame {
+class OffroadHome : public QFrame {
   Q_OBJECT
 
 public:
-  explicit ClearPilotPanel(QWidget* parent = 0);
+  explicit OffroadHome(QWidget* parent = 0);
 
 signals:
   void openSettings(int index = 0, const QString &param = "");
-  void openStatus();
-  void closePanel();
-
-public:
-  void resetToGeneral();
 
 private:
-  QStackedWidget *panel_widget;
-  QButtonGroup *nav_group;
+  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;
 };
 
 class HomeWindow : public QWidget {
@@ -46,7 +53,6 @@ public:
 
 signals:
   void openSettings(int index = 0, const QString &param = "");
-  void openStatus();
   void closeSettings();
 
 public slots:
@@ -61,18 +67,17 @@ protected:
 
 private:
   Sidebar *sidebar;
-  ClearPilotPanel *home;
+  OffroadHome *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);