- Fix slow object operations / unresponsive layer panel: 3D pose images no longer embed the VRM model (data-pose3d-model, ~56MB each); existing ones are stripped on page open and on save. Images/balloons/groups are saved only when actually moved. - Text corner handles now keep the opposite corner fixed and scale in the drag direction. - Balloon-embedded text can be moved by dragging the triangular corner of a dotted box (double-click opens the existing modal). - Help (ja/en/zh), README (ja/en/zh) and DEVLOG updated. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>