v0.5.0 — client-agnostic + page-context errors

Added

• Timeout and not-found errors from browser_wait_for / browser_wait_for_text / browser_find_text now include page context (URL, readyState, title, body excerpt) plus a browser_handoff hint on CAPTCHA/Cloudflare interstitials.
• networkidle waits that time out explain that the state often never fires and suggest alternatives.

Changed

• Repositioned as client-agnostic: registration docs for Codex CLI, Gemini CLI, Cursor, and VS Code alongside Claude Code / Claude Desktop, plus a Windows/Linux/macOS support matrix.
• CI builds and tests on Windows and macOS in addition to Ubuntu.

Fixed

• MCP server metadata reports the real package version (was hardcoded 0.1.0).
• Lint clean: caught errors attached as cause, dead code removed, unused imports dropped.

Full details in CHANGELOG.md.