Introduces new provider modules for DouBao, Ernie, Kimi, Qwen, and ZhiPu, and registers them in the LLM registry. Updates documentation and .env.example to include configuration instructions for these providers. Refactors OpenAI provider to support OpenAI-compatible endpoints. Adds @ai-sdk/openai-compatible and node-fetch dependencies.
Changed site URL in docusaurus.config.js, enabled experimental features, and added Bash syntax highlighting. Updated dependencies in package.json to latest versions and added @docusaurus/faster for improved build performance.
