Function createOpenAIAdapter

Adapters exports - Model adapters (Claude, OpenAI, Gemini, Ollama) Split from index.ts for file size compliance (Issue #285)

createOpenAIAdapter(config: OpenAIAdapterConfig): OpenAIAdapter
Creates an OpenAIAdapter with the specified configuration. Factory function for cleaner API.
Parameters
- config: OpenAIAdapterConfig
  OpenAI adapter configuration
Returns OpenAIAdapter
A configured OpenAIAdapter instance
Example
```
const adapter = createOpenAIAdapter({
  modelId: 'gpt-4o',
  apiKey: process.env.OPENAI_API_KEY!,
});
```
- Defined in packages/nexus-agents/src/adapters/openai-adapter.ts:435