Implement dynamic clientless free-flight travel

Integrate transient flight alternatives with graph routing, native flying mounts, phased terrain and collision checks, bounded avoidance and confirmed landing. Add safe-return recovery, node and location integration, profile settings, diagnostic commands, regression tests and flight documentation.

src/server/game/World/ClientlessLuaEngine.cpp

@@ -174,11 +174,11 @@ std::unordered_map<std::string, float> ReadFloatDictionary(lua_State* L, int tab
     return out;
 }
 
-std::vector<ClientlessWeightedMount> ReadMountDictionary(lua_State* L, int movementTable)
+std::vector<ClientlessWeightedMount> ReadMountDictionary(lua_State* L, int movementTable, char const* field = "ground_mounts")
 {
     std::vector<ClientlessWeightedMount> mounts;
     movementTable = lua_absindex(L, movementTable);
-    lua_getfield(L, movementTable, "ground_mounts");
+    lua_getfield(L, movementTable, field);
     if (!lua_istable(L, -1))
     {
         lua_pop(L, 1);
@@ -371,6 +371,8 @@ bool ClientlessLuaEngine::LoadAdventureProfile(Player* player)
         profile.GroundMountSpeedRate = std::max(1.0f,
             ReadFloatField(_state, -1, "ground_mount_speed_rate", 1.6f));
         profile.GroundMounts = ReadMountDictionary(_state, -1);
+        profile.CanFreeFly = ReadBoolField(_state, -1, "can_free_fly", false);
+        profile.FlightMounts = ReadMountDictionary(_state, -1, "flight_mounts");
     }
     lua_pop(_state, 1);