v2.3.0

New Skills

• modern-javascript - Modern JavaScript (ES6-ES2025) patterns and best practices
  • Comprehensive coverage from ES6 through ES2025
  • Decision trees for array methods, nullish handling, mutations
  • Async patterns, functional programming, destructuring
  • Reference docs for each ES version with code examples
  • Cheatsheet with legacy-to-modern migration guide

Improvements

• Updated skill resources with authoritative URLs
• Replaced ecommerce book links with Open Library references
• Removed auth-required links (Telegram, Discord)
• Added PostgreSQL/Drizzle documentation URLs
• Added GitHub/GitLab Mermaid support documentation