Fix taxi flight: camera panning, world reload, gryphon display, and animations

- Clear introActive/idleOrbit in externalFollow block so mouse panning works during taxi
- Skip full world reload on same-map teleports (taxi landing) by tracking loadedMapId
- Collect all model IDs for a path when resolving gryphon display ID (fixes displayId=0)
- Remove incorrect MountDisplayId fields from Vanilla/Turtle TaxiNodes DBC layouts
- Add Vanilla fly animation IDs (234/229/233) to taxi mount animation candidates

src/game/game_handler.cpp

@@ -8688,7 +8688,8 @@ void GameHandler::handleTeleportAck(network::Packet& packet) {
         LOG_INFO("Sent MSG_MOVE_TELEPORT_ACK response");
     }
 
-    // Notify application to reload terrain at new position
+    // Notify application of teleport — the callback decides whether to do
+    // a full world reload (map change) or just update position (same map).
     if (worldEntryCallback_) {
         worldEntryCallback_(currentMapId_, serverX, serverY, serverZ);
     }