v0.4.3

Fixed

• Registry server errors now preserve the real upstream status and detail — SDK-backed Anthropic and OpenAI routes no longer collapse provider errors into an opaque 502 Bad Gateway, making authentication, rate-limit, and invalid-request failures actionable.
• The web UI version now stays synchronized with the CLI — the sidebar version is derived from package.json at server startup instead of using a hardcoded value.
• README demo previews render reliably — broken embedded video previews now use YouTube-hosted thumbnails.

Documentation

• Restored the complete project documentation set — setup and reference guides for Claude Desktop, Codex, Gemini, providers, the API server, model compatibility, troubleshooting, and AI agents are tracked in the repository again.
• Package archives are excluded from source and npm packages — generated .tgz files can no longer pollute the repository root or recursively include themselves in a release archive.