Archimonde: interrupt Air Burst target casts before spread movement

[Copilot]

Archimonde Air Burst spread handling was keyed to the main tank target check, so the actual Air Burst target could continue casting and delay movement. This update makes the targeted bot react immediately by interrupting and creating distance from the main tank.

• Targeting logic correction

  • In ArchimondeSpreadToAvoidAirBurstAction::Execute, the Air Burst check now matches spell->m_targets.GetUnitTarget() against bot (the current bot), not the main tank.

• Immediate movement readiness

  • When the targeted bot is inside the unsafe range to main tank, it now calls RequestSpellInterrupt() before MoveAway(...) so repositioning is not blocked by an active cast.

• Behavioral outcome

  • Air Burst avoidance is now executed by the actual targeted bot with lower reaction latency and cleaner separation from the tank stack.

if (mainTank && spell->m_targets.GetUnitTarget() == bot)
{
    float currentDistance = bot->GetDistance2d(mainTank);
    constexpr float safeDistance = 14.0f;
    if (currentDistance < safeDistance)
    {
        botAI->RequestSpellInterrupt();
        return MoveAway(mainTank, safeDistance - currentDistance);
    }
}