Docs mismatch: `chat.send` examples omit required `chatGenerationParams` wrapper

[0xherve]

The documentation overview shows calling client.chat.send with it accepting an object: with types below:

model: string,
messages: [{
role: string,
content: string
}],
stream?: boolean
]

However, the SDK types require these to be nested under chatGenerationParams. This causes a TypeScript error when following the docs.

Steps to Reproduce

1. Install @openrouter/sdk@0.9.11
2. Use the docs-style call:
   • client.chat.send({ model, messages, stream })
3. Observe TypeScript error:
   Object literal may only specify known properties, and 'model' does not exist in type 'SendChatCompletionRequestRequest'

Expected Behavior
The docs example should either wrap model/messages/stream under chatGenerationParams, or the SDK typings should be updated to accept top‑level model/messages/stream.

Actual Behavior
The SDK currently requires:

• client.chat.send({ chatGenerationParams: { model, messages, stream } })

Environment

• OS: WSL with Ubuntu
• Runtime: Bun
• Package: @openrouter/sdk@0.9.11
• TypeScript: ^5