YSM compatible update

• Added Yes Steve Model paper doll compatibility: DragonSurvival dragons now keep their neck/head in YSM's HUD paper doll and paper-doll config screen, and the YSM config preview uses the same compatibility path.
• Added YSM glide fixes: body orientation follows the paper doll view, the dragon no longer twists toward the take-off heading, and roll/bank is kept out of the preview to avoid the lock-south twist. Paper doll pitch wobble now works in YSM previews as well.
• Added YSM UI preview scale isolation: YSM GUI and HUD previews use normal player scale/height; the in-world YSM model still follows the dragon's real scale.
• Fixed YSM model selection preview scaling inversely with dragon growth.