Generate publication-quality charts using Apache ECharts
$npx -y skills add akougkas/wtf-p --skill echartsInstalls into the current project.
Run `npx skills use "https://github.com/akougkas/wtf-p" --skill "akougkas/wtf-p/echarts"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/akougkas/wtf-p" that are relevant to the current task. Run `npx skills add "https://github.com/akougkas/wtf-p"` and select the relevant skills, then follow their instructions.