Add AdventureBot groups, raid preparation and shared travel

Implement native bot recruitment and player admission, leader-owned destinations, intent-specific capacities, preparation scheduling and shared graph and flight travel. Support native group instance visits and separate raid entrances.

Include pending personality-driven faction PvP and solo fleeing, preserving the absolute group fleeing exclusion. Add regression fixtures, migration, documentation and test-server evidence.

src/server/game/World/ClientlessFlightMgr.cpp

@@ -16,6 +16,7 @@
 #include "MoveSpline.h"
 #include "PhasingHandler.h"
 #include "Player.h"
+#include "Group.h"
 #include "PathGenerator.h"
 #include "Random.h"
 #include "SpellInfo.h"
@@ -139,6 +140,8 @@ ClientlessFlightStatus const * ClientlessFlightMgr::GetStatus(uint32 guid) const
 
 void ClientlessFlightMgr::Clear(uint32 guid)
 {
+    auto it=_records.find(guid);
+    if(it!=_records.end() && it->second.Status.State!=ClientlessFlightState::Arrived)it->second.Published->Aborted=true;
     _records.erase(guid);
 }
 
@@ -270,6 +273,16 @@ bool ClientlessFlightMgr::Start(Player * player, Position const & target, std::s
     record.Status.State = ClientlessFlightState::Mounting;
     record.Status.MountSpell = spell;
     record.Status.Detail = "waiting for native flying mount";
+    if(auto group=player->GetGroup())if(group->GetLeaderGUID()!=player->GetGUID())
+    {
+        auto source=_records.find(group->GetLeaderGUID().GetCounter());
+        if(source!=_records.end() && source->second.Status.MapId==player->GetMapId() &&
+            source->second.Status.Target.GetExactDist(target)<1 && !source->second.Published->Aborted)
+        {
+            record.Following=source->second.Published;record.Status.Landing=source->second.Status.Landing;
+            TC_LOG_INFO("server.adventurebot.navigation","FLIGHT_SHARED_TRAIL guid=%u leader=%u",player->GetGUID().GetCounter(),group->GetLeaderGUID().GetCounter());
+        }
+    }
     _records[player->GetGUID().GetCounter()] = std::move(record);
     if (player->CastSpell(player, spell, false) != SPELL_CAST_OK)
     {
@@ -283,6 +296,7 @@ bool ClientlessFlightMgr::Start(Player * player, Position const & target, std::s
 
 void ClientlessFlightMgr::Fail(Player * player, Record & record, std::string const & reason)
 {
+    record.Published->Aborted=true;
     player->StopMoving();
     record.Moving = false;
     if (record.Status.State == ClientlessFlightState::Mounting) player->InterruptNonMeleeSpells(false);
@@ -338,6 +352,13 @@ bool ClientlessFlightMgr::Advance(Player * player, Record & record, bool handoff
             back, Corridor(current, back, goal, record.Settings, sample, ray, true), true, false
         };
     }
+    else if(record.Following)
+    {
+        auto shared=FollowTrail(current,goal,record.Settings,*record.Following,record.SharedIndex,sample,ray);
+        if(shared.Waiting)return true;
+        next=shared.Step;
+        if(handoff && next.Valid && Distance(next.Next,PointOf(record.Segment))<1)return true;
+    }
     else
     {
         auto const memory = record.Memory;
@@ -368,6 +389,7 @@ bool ClientlessFlightMgr::Advance(Player * player, Record & record, bool handoff
         Fail(player, record, "flight spline rejected");
         return false;
     }
+    record.Published->Points.push_back(next.Next);
     record.Moving = true;
     record.SegmentElapsed = 0;
     ++ record.Status.Segments;