UI overhaul, VPN management, controlsd fix, screen recorder removal

- Fix controlsd crash: self.state.name AttributeError when state is int
- Move telemetry tlog import to module level in carstate.py (was per-frame)
- Remove FrogPilot screen recorder from UI (was crashing OMX on init)
- Ready screen: boot logo background, 8-bit READY! sprite, error states
  (panda not connected, car not recognized) with 10s startup grace period
- ClearPilot menu: always opens to General, QButtonGroup for sidebar,
  System Status uses ButtonControl, VPN toggle with process control
- Sidebar hidden on construction (no flash before splash)
- Status window: threaded data collection (QtConcurrent), panda detection
  via scene.pandaType (SPI, not USB), only refreshes when visible
- VPN: moved to system/clearpilot/, SIGTERM graceful shutdown, keepalive
  ping through tunnel, killall openvpn on disable, launched from
  launch_openpilot.sh instead of continue.sh
- Disable gpsd and dashcamd temporarily for perf testing

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

selfdrive/ui/qt/ready.h

@@ -8,8 +8,9 @@
 #include <QSocketNotifier>
 #include <QVariantAnimation>
 #include <QWidget>
+#include <QElapsedTimer>
 #include <QTimer>
- 
+
 #include "common/util.h"
 #include "selfdrive/ui/ui.h"
 
@@ -26,6 +27,8 @@ private:
     QTimer* timer;
     bool is_hot = false;
     QString cur_temp;
-    QPixmap img_ready;
+    QString error_msg;  // non-empty = show red error instead of READY!
+    QElapsedTimer uptime;
+    QPixmap img_bg;
     QPixmap img_hot;
 };