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/SConscript

@@ -39,7 +39,7 @@ qt_src = ["main.cc", "qt/sidebar.cc", "qt/onroad.cc", "qt/body.cc",
           "qt/window.cc", "qt/home.cc", "qt/offroad/settings.cc",
           "qt/offroad/software_settings.cc", "qt/offroad/onboarding.cc",
           "qt/offroad/driverview.cc", "qt/offroad/experimental_mode.cc",
-          "../frogpilot/screenrecorder/omx_encoder.cc", "../frogpilot/screenrecorder/screenrecorder.cc",
+          "../frogpilot/screenrecorder/omx_encoder.cc",  # kept for dashcamd .o dependency
           "qt/ready.cc"]
 
 # build translation files