新增: - _d8d/design-tool-adapter/interface.md: 5 个抽象操作接口 - _d8d/design-tool-adapter/adapters/pencil.md: Pencil CLI 实现 修改: - d8d-prototype step-01/step-07: 去除 mcp__pencil 硬编码,改用适配层 - d8d-iterate phase-00/01/03: 新增设计文件变更检测和重新提取 - d8d-requirements phase-00/02/workflow: 设计文件检测改用适配层 - d8d-skills-sync: 新增 _d8d/ 目录同步支持 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>