- Added OPENAI_API_KEY to the Env interface
- Added OPENAI_API_KEY to package.json dependencies
- Added @ai-sdk/openai to package.json dependencies
- Added Prompts interface to prompts-interface.ts
- Added Prompts implementation to anthropic-llm.ts and openai-llm.ts
- Added LLMType enum to llm-selector.ts
- Added selectLLM and getCurrentLLMType functions to llm-selector.ts
- Added AnthropicLLM and OpenAILLM classes to anthropic-llm.ts and openai-llm.ts
- Added getModel function to model.ts
- Added streamText function to stream-text.ts
- Updated chatAction function in api.chat.ts to use selectLLM and getCurrentLLMType