adopt modelrevert tree as the new clearpilot baseline

Replaces clearpilot's working state wholesale with the modelrevert branch's
tree (modelrevert tip cea422b). Discards the parked-controlsd manager-process
split and the two session READMEs that documented it; keeps the simpler
in-process park short-circuits (controlsd state_control, plannerd, frogpilot_process)
and the cached-output decimation (modeld, dmonitoringmodeld) that achieve
the same goal with less moving parts. Also brings in the locationd GPS
ignore, the calibrationd valid=calStatus gate, and the model-revert lineage's
controlsd / paramsd / torqued / events.py / carstate.py / interfaces.py.

This is a single new commit on clearpilot (no merge), so the branch advances
linearly while the file state matches modelrevert exactly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

selfdrive/boardd/boardd.cc

@@ -415,7 +415,6 @@ void panda_state_thread(std::vector<Panda *> pandas, bool spoofing_started) {
   Panda *peripheral_panda = pandas[0];
   bool is_onroad = false;
   bool is_onroad_last = false;
-  bool ignition_last = false;
   std::future<bool> safety_future;
 
   std::vector<std::string> connected_serials;
@@ -473,14 +472,8 @@ void panda_state_thread(std::vector<Panda *> pandas, bool spoofing_started) {
 
     is_onroad = params.getBool("IsOnroad");
 
-    // CLEARPILOT: trigger on ignition rising edge instead of IsOnroad rising edge.
-    // ClearPilot's parked-mode split breaks the stock assumption that IsOnroad
-    // rises with ignition: IsOnroad now requires `started`, which requires
-    // thermald to see carState != park, which requires controlsd_parked to
-    // finish CarD init, which requires this thread to ack OBD multiplexing.
-    // Firing on ignition restores the original "set safety as soon as the bus
-    // is alive" timing for both controlsd variants.
-    if (ignition && !ignition_last) {
+    // set new safety on onroad transition, after params are cleared
+    if (is_onroad && !is_onroad_last) {
       if (!safety_future.valid() || safety_future.wait_for(0ms) == std::future_status::ready) {
         safety_future = std::async(std::launch::async, safety_setter_thread, pandas);
       } else {
@@ -489,7 +482,6 @@ void panda_state_thread(std::vector<Panda *> pandas, bool spoofing_started) {
     }
 
     is_onroad_last = is_onroad;
-    ignition_last = ignition;
 
     sm.update(0);
     const bool engaged = sm.allAliveAndValid({"controlsState"}) && sm["controlsState"].getControlsState().getEnabled();