Changelog
- Add quest_definitions.ShowFinishPath (migration 056, default 1 so existing quests keep the path)
- Load it into DBQuestDefinition through QuestDefinitionRepository.GetDefinitions
- MsgQuestLog Detail writes ShowFinishPath u8 right after FinishRoute so the client can drop Go on and the tracker walk link
- Cover the byte for both values in QuestLogPacketTests