Add 260+ Claude Code skills from skills.sh

Complete collection of AI agent skills including:
- Frontend Development (Vue, React, Next.js, Three.js)
- Backend Development (NestJS, FastAPI, Node.js)
- Mobile Development (React Native, Expo)
- Testing (E2E, frontend, webapp)
- DevOps (GitHub Actions, CI/CD)
- Marketing (SEO, copywriting, analytics)
- Security (binary analysis, vulnerability scanning)
- And many more...

Synchronized from: https://skills.sh/

Co-Authored-By: Claude <noreply@anthropic.com>

dev-browser/CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+
+## [1.0.1] - 2025-12-10
+
+### Added
+
+- Support for headless mode
+
+## [1.0.0] - 2025-12-10
+
+### Added
+
+- Initial release