Fix AdventureBot group preparation, public portals and flight recovery

Add preparation outings and equipment checks with a five-minute return to the meeting point. Correct static portal visitor casting and level conditions, with native interaction diagnostics. Recover suspended flying mounts, walk to verified takeoff sites, and validate landing and return volumes. Include SQL migrations, targeted regression tests and live validation checkpoints.

tests/clientless/test_flight_policy.py

@@ -61,8 +61,9 @@ struct Areas{bool known=true;auto LookupEntry(uint32){return known?&area:nullptr
 enum class ClientlessFlightState{Mounting,Flying,Arrived,Failed};
 struct Record{std::shared_ptr<ClientlessFlightPath::SharedTrail>Published=std::make_shared<ClientlessFlightPath::SharedTrail>();
  struct{bool FollowingPlayer=false;ClientlessFlightState State=ClientlessFlightState::Flying;uint32 MapId=0;std::string Detail;}Status;
- bool Moving=true,Returning=false;std::vector<Position> Breadcrumbs{{}};std::string AbortReason;
+ bool Moving=true,Returning=false,ApproachingDeparture=false;std::vector<Position> Breadcrumbs{{}};std::string AbortReason;
 };
+struct Travel{int cancels=0;void CancelTravel(uint32){++cancels;}}travel;auto sClientlessTravelMgr=&travel;
 class ClientlessFlightMgr{public:
  Player const* _planningPlayer=nullptr;bool _planningEnabled=false;float _planningMinDistance=600;
  std::unordered_set<uint32> _planningPreferredZones;
@@ -122,6 +123,7 @@ int main(){
  profile.CanFreeFly=false;assert(!mgr.Enabled(&p));
  mgr.BeginPlanning();assert(!std::isfinite(mgr.Estimate(&p,0,a,b)));
  profile.CanFreeFly=true;
+ int beforeInterrupts=p.interrupts;Record approach;approach.ApproachingDeparture=true;approach.Status.State=ClientlessFlightState::Mounting;mgr.Fail(&p,approach,"interrupted");assert(travel.cancels==1&&!approach.ApproachingDeparture&&approach.Status.State==ClientlessFlightState::Failed&&p.interrupts==beforeInterrupts);
  Record revoked;p.canFly=false;mgr.Fail(&p,revoked,"permission lost");assert(revoked.Status.State==ClientlessFlightState::Failed&&!revoked.Returning);
 }
 '''