Update README to improve project attribution

Update README.md

translate SKILL.md to Chinese

remove duplicated nested skill directory

strengthen PPT review workflow

add quality validation tools

add chaitin template and layout rules

Merge remote-tracking branch 'origin/main'

docs: add cost analysis FAQ to both READMEs

fix: chaitin模板资源文件移到根目录

feat: 初始化 ppt-master 项目

docs: add custom template creation guide to both READMEs

1. docs(standards): add arc path and diagonal arrow calculation rules

fix(executor): enforce speaker notes label localization to prevent mixed-language output

feat(svg_to_pptx): add rotate support to all element types and tune shadow/glow params