fix: replace Windows iwr install command with npx skills add
Summary
- Replace all Windows PowerShell iwr/install.ps1 commands with community-standard npx skills add --skill -g -y
- Linux/macOS curl|bash commands left unchanged
Why
The PowerShell script was prone to download corruption, encoding issues, and execution policy problems. npx skills (maintained by Vercel Labs) is Node.js-based, cross-platform, and supports GitLab URLs natively.
Changes
- src/components/Hero.tsx — simplified to single npx command for Windows
- src/components/SkillDrawer.tsx — removed platform toggle, unified to npx
- src/app/docs/installation/page.tsx — updated Windows install section
- src/app/docs/usage/page.tsx — updated Windows install instructions and FAQ