Improve AdventureBot travel recovery and destination eligibility

tests/clientless/test_adventure_interactions.py

@@ -9,6 +9,7 @@ source=(root/'src/server/game/World/AdventureInteractionMgr.cpp').read_text()
 source='\n'.join(line for line in source.splitlines() if not line.startswith('#include'))
 code=r'''
 #include "AdventureInteractionPolicy.h"
+#include "AdventureGroupPolicy.h"
 #include <algorithm>
 #include <cassert>
 #include <cmath>
@@ -42,7 +43,7 @@ struct Player:Unit {
  explicit Player(unsigned id=26){guid.id=id;session.owner=this;}
  ObjectGuid GetGUID(){return guid;}bool IsAlive(){return alive;}bool IsInWorld(){return inWorld;}bool IsInCombat(){return combat;}bool IsBeingTeleported(){return teleport;}bool GetTransport(){return transport;}bool IsFlying(){return false;}bool IsInFlight(){return flight;}bool IsCharmed(){return charmed;}bool HasUnitState(int){return casting;}
  bool IsInMap(Player*p){return mapid==p->mapid;}bool IsInPhase(Player*p){return phase && p->phase;}bool CanSeeOrDetect(Player*p){return p->visible;}bool IsWithinLOSInMap(Player*p){return los && p->los;}bool IsFriendlyTo(Player*p){return team==p->team;}
- Map*GetMap(){return &map;}unsigned GetMapId(){return mapid;}Session*GetSession(){return &session;}Group*GetGroup(){return group;}void UninviteFromGroup(){invite=nullptr;}Group*GetGroupInvite(){return invite;}unsigned GetTeam(){return team;}ObjectGuid GetTarget(){return selection;}bool isAFK(){return afk;}
+ Map*GetMap(){return &map;}unsigned GetMapId(){return mapid;}unsigned level=60;unsigned getLevel(){return level;}Session*GetSession(){return &session;}Group*GetGroup(){return group;}void UninviteFromGroup(){invite=nullptr;}Group*GetGroupInvite(){return invite;}unsigned GetTeam(){return team;}ObjectGuid GetTarget(){return selection;}bool isAFK(){return afk;}
  void SetStandState(int s){posture=s;}void SetFacingToObject(Player*){}void HandleEmoteCommand(uint32 e){++gestures;lastEmote=e;}void Say(char const*,int,Player*){++says;}
  void GetNearPoint(Player*,float&x,float&y,float&z,float,float){x=m_positionX;y=m_positionY;z=m_positionZ;}
  std::vector<Player*> people;void GetPlayerListInGrid(std::vector<Player*>&out,float){out=people;}