Fix Deep Breath issues during Onyxia encounter (#2318)

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## Pull Request Description
<!-- Describe what this change does and why it is needed -->
The current strategy for Onyxia causes bots to get hit by her breath
attack relatively consistently during phase 2.
The problem was that the safe zone coordinates always use the bot's
z-coordinate. If the bots are standing at the lower altitude part of the
arena, `SearchForBestPath` inside `MoveTo` causes `INVALID_HEIGHT`,
resulting in the bot not moving at all and getting hit by the breath
attack.

This PR fixes this behavior by using the actual terrain z-coordinates
for the predefined safe zones instead of always using the bot's
z-coordinate. These values are chosen to ensure valid pathfinding
regardless of the bot's current elevation.
Additionally, bots now interrupt their spells if they are not inside a
safe zone during the breath. This causes the bots to immediately start
running instead of finishing their casts first.

## Feature Evaluation
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<!-- Please answer the following: -->
- Describe the **minimum logic** required to achieve the intended
behavior.

Replaced the use of `bot->GetPositionZ()` in `GetSafeZonesForBreath`
with predefined safe zone z-coordinates to ensure valid pathfinding.
Added `AttackStop` and `InterruptNonMeleeSpells` to guarantee immediate
movement when outside safe zones.
No additional condition checks or branching logic were introduced.

- Describe the **processing cost** when this logic executes across many
bots.

Minimal. The logic only runs within the Onyxia encounter script and
calling `AttackStop` and `InterruptNonMeleeSpells` should be negligible.


## How to Test the Changes
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- Any required setup (e.g. multiple players, number of bots, specific
configuration).
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Enter Onyxia's Lair (10, 25 or 40 (mod-individual-progression)) and
engage Onyxia with the appropriate number of bots.
During phase 2 (Onyxia takes off), check if the bots move to the safe
zones during the breath attack.
Tip: Mark Onyxia as moon (RTI), so that phase 2 doesn't end too quickly.

## Impact Assessment
<!-- As a generic test, before and after measure of pmon (playerbot pmon
tick) can help you here. -->
- Does this change increase per-bot/per-tick processing or risk scaling
poorly with thousands of bots?
    - - [ ] No, not at all
    - - [x] Minimal impact (**explain below**)
    - - [ ] Moderate impact (**explain below**)

The calls of `AttackStop` and `InterruptNonMeleeSpells` cause minimal
overhead compared to the original strategy. This should be negligible.

- Does this change modify default bot behavior?
    - - [ ] No
    - - [x] Yes (**explain why**)

Yes (encounter-specific). Bots will now interrupt casts earlier during
Onyxia phase 2 to prioritize movement to safe zones.

- Does this change add new decision branches or increase maintenance
complexity?
    - - [x] No
    - - [ ] Yes (**explain below**)

## AI Assistance
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Was AI assistance used while working on this change?
- - [x] No
- - [ ] Yes (**explain below**)
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## Final Checklist

- - [x] Stability is not compromised.
- - [x] Performance impact is understood, tested, and acceptable.
- - [x] Added logic complexity is justified and explained.
- - [x] Any new bot dialogue lines are translated.
- - [x] Documentation updated if needed (Conf comments, WiKi commands).

## Notes for Reviewers
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The strategy for Onyxia might need additional work:
For example, the Onyxian Lair Guards are completely ignored while whelps
are alive and their Blast Nova doesn't get handled at all.
This PR focuses on fixing the Deep Breath behavior. Handling of Onyxian
Lair Guards is not included and should be implemented in a separate PR.

src/Ai/Raid/Onyxia/Action/RaidOnyxiaActions.cpp

@@ -99,8 +99,12 @@ bool RaidOnyxiaMoveToSafeZoneAction::Execute(Event /*event*/)
     if (bot->IsWithinDist2d(bestZone->pos.GetPositionX(), bestZone->pos.GetPositionY(), bestZone->radius))
         return false;  // Already safe
 
+    // Stop current spell first
+    bot->AttackStop();
+    bot->InterruptNonMeleeSpells(false);
+
     // bot->Yell("Moving to Safe Zone!", LANG_UNIVERSAL);
-    return MoveTo(bot->GetMapId(), bestZone->pos.GetPositionX(), bestZone->pos.GetPositionY(), bot->GetPositionZ(),
+    return MoveTo(bot->GetMapId(), bestZone->pos.GetPositionX(), bestZone->pos.GetPositionY(), bestZone->pos.GetPositionZ(),
                   false, false, false, false, MovementPriority::MOVEMENT_COMBAT);
 }
 

src/Ai/Raid/Onyxia/Action/RaidOnyxiaActions.h

@@ -2,7 +2,6 @@
 #ifndef _PLAYERBOT_RAIDONYXIAACTIONS_H_
 #define _PLAYERBOT_RAIDONYXIAACTIONS_H_
 
-#include "Action.h"
 #include "AttackAction.h"
 #include "GenericSpellActions.h"
 #include "MovementActions.h"
@@ -45,42 +44,45 @@ public:
     bool Execute(Event event) override;
 
 private:
-    std::vector<SafeZone> GetSafeZonesForBreath(uint32 spellId)
+    static std::vector<SafeZone> GetSafeZonesForBreath(uint32 spellId)
     {
-        // Define your safe zone coordinates based on the map
+        // Safe zone coordinates based on the map
-        // Example assumes Onyxia's lair map coordinates
+        // Assumes Onyxia's lair map coordinates
-        float z = bot->GetPositionZ();  // Stay at current height
 
         switch (spellId)
         {
             case 17086:  // N to S
             case 18351:  // S to N
-                return {SafeZone{Position(-10.0f, -180.0f, z), 5.0f},
+                return {
-                        SafeZone{Position(-20.0f, -250.0f, z), 5.0f}};  // Bottom Safe Zone
+                    SafeZone{Position(-10.0f, -180.0f, -87.0f), 5.0f},
+                    SafeZone{Position(-20.0f, -250.0f, -88.0f), 5.0f}
+                };  // Bottom Safe Zone
 
             case 18576:  // E to W
             case 18609:  // W to E
                 return {
-                    SafeZone{Position(20.0f, -210.0f, z), 5.0f},
+                    SafeZone{Position(20.0f, -210.0f, -85.5f), 5.0f},
-                    SafeZone{Position(-75.0f, -210.0f, z), 5.0f},
+                    SafeZone{Position(-75.0f, -210.0f, -83.4f), 5.0f},
                 };  // Left Safe Zone
 
             case 18564:  // SE to NW
             case 18584:  // NW to SE
                 return {
-                    SafeZone{Position(-60.0f, -195.0f, z), 5.0f},
+                    SafeZone{Position(-60.0f, -195.0f, -85.0f), 5.0f},
-                    SafeZone{Position(10.0f, -240.0f, z), 5.0f},
+                    SafeZone{Position(10.0f, -240.0f, -85.9f), 5.0f},
                 };  // NW Safe Zone
 
             case 18596:  // SW to NE
             case 18617:  // NE to SW
                 return {
-                    SafeZone{Position(7.0f, -185.0f, z), 5.0f},
+                    SafeZone{Position(7.0f, -185.0f, -86.2f), 5.0f},
-                    SafeZone{Position(-60.0f, -240.0f, z), 5.0f},
+                    SafeZone{Position(-60.0f, -240.0f, -85.2f), 5.0f},
                 };  // NE Safe Zone
 
             default:
-                return {SafeZone{Position(0.0f, 0.0f, z), 5.0f}};  // Fallback center - shouldn't ever happen
+                return {
+                    SafeZone{Position(-40.0f, -214.0f, -86.6f), 5.0f}
+                };  // Fallback center - shouldn't ever happen
         }
     }
 };