Fix progression stalls and add normal class trainer visits

tests/survival-lua.test.py

@@ -15,7 +15,7 @@ function make(id,name)
  function p:GetGUIDLow()return self.id end;function p:GetName()return self.name end;function p:GetAccountId()return 10+self.id end
  function p:IsPlayerbot()return not self.human end;function p:IsDead()return self.dead end;function p:GetBotAI()return self.ai end
  function p:GetPowerType()return self.powerType or 1 end;function p:GetPowerPct()return self.mana or 100 end;function p:GetAttackers()return self.attackers or {} end;function p:GetHealthPct()return self.hp end;function p:IsInCombat()return self.combat end
- function p:IsTaxi()return self.taxi end;function p:IsCasting()return self.cast end;function p:IsRooted()return false end
+ function p:HasUnitState(state)assert(state==0x00000100);return self.taxi end;function p:IsCasting()return self.cast end;function p:IsRooted()return false end
  function p:GetX()return self.x or 0 end;function p:GetY()return 0 end
  function p:GetUnfriendlyUnitsInRange()return self.friendly and {} or self.selected and {self.selected} or {} end;function p:GetSelection()return self.selected end;function p:StopSpellCast()self.cast=false;self.interrupted=true end
  function p:AttackStop()self.attackStopped=true end;function p:MoveStop()self.waited=true end
@@ -65,3 +65,7 @@ l=new();l.execute("group();A.distance=50;B.distance=50;A.strategies={rpg=true,gr
 l=new();l.execute("group();B.distance=50;B.combat=true;B.hp=20;step(0);assert(calls[1]=='flee','Survival outranks regrouping');assert(not B.master)")
 l=new();l.execute("group();A.distance=40;step(0);A.waited=false;step(22);assert(not A.waited,'Leader waiting must remain bounded');A.distance=5;step(2);A.distance=40;step(2);assert(A.waited,'A fresh separation starts a fresh wait')")
 print('Cohesion suppresses competing work, keeps catch-up hysteresis, yields to danger, and resets bounded waits')
+
+l=new();l.execute("A.strategies={stay=true};step(0);assert(not A.strategies.stay,'Fully recovered autonomous resident must not remain in stay')")
+l=new();l.execute("group();B.distance=50;step(0);step(40);assert(B.master==nil,'No-progress regroup must release its owned master');assert(not AzerothAISurvivalOverride(B));step(30);assert(B.master==nil,'Backoff must prevent immediate retry')")
+print('Recovered stay cleared and non-progressing regroup bounded')