feat(Core/Travel): Port TravelPath::cutTo for upcoming special-movement handling

src/Mgr/Travel/TravelNode.cpp

@@ -706,6 +706,18 @@ bool TravelPath::IsPathCheating(std::vector<WorldPosition> const& path, float en
     return false;
 }
 
+bool TravelPath::cutTo(PathNodePoint point, bool including)
+{
+    auto it = std::find(fullPath.begin(), fullPath.end(), point);
+
+    if (it == fullPath.end())
+        return false;
+
+    auto cutIt = including ? std::next(it) : it;
+    fullPath.erase(fullPath.begin(), cutIt);
+    return true;
+}
+
 bool TravelPath::makeShortCut(WorldPosition startPos, float maxDist, Unit* bot)
 {
     if (GetPath().empty())

src/Mgr/Travel/TravelNode.h

@@ -492,6 +492,12 @@ public:
 
     bool makeShortCut(WorldPosition startPos, float maxDist, Unit* bot = nullptr);
 
+    // Trim the path up to (and optionally including) the given point.
+    // Returns true if the point was found. Used by upcoming special-
+    // movement detection to advance the path past a portal/transport/
+    // area-trigger node once the bot reaches it.
+    bool cutTo(PathNodePoint point, bool including);
+
     // Reject paths the navmesh accepts but a player can't walk:
     // 2-point shortcut over 5y, or > 10y vertical drop with slope steeper than 2:1.
     static bool IsPathCheating(std::vector<WorldPosition> const& path,