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>

common/params.cc

@@ -194,12 +194,14 @@ std::unordered_map<std::string, uint32_t> keys = {
     {"RecordFrontLock", PERSISTENT},  // for the internal fleet
     {"ReplayControlsState", CLEAR_ON_MANAGER_START | CLEAR_ON_ONROAD_TRANSITION},
     {"RouteCount", PERSISTENT},
+    {"ShutdownTouchReset", PERSISTENT},
     {"SnoozeUpdate", CLEAR_ON_MANAGER_START | CLEAR_ON_OFFROAD_TRANSITION},
     {"SshEnabled", PERSISTENT},
     {"TermsVersion", PERSISTENT},
     {"TelemetryEnabled", PERSISTENT},
     {"Timezone", PERSISTENT},
     {"TrainingVersion", PERSISTENT},
+    {"ModelFps", PERSISTENT},
     {"ModelStandby", PERSISTENT},
     {"ModelStandbyTs", PERSISTENT},
     {"UbloxAvailable", PERSISTENT},