feat(integration-xai): Add support for X.AI provider with chat and document processing capabilities.

readme.md

@@ -24,6 +24,14 @@ This command installs the package and adds it to your project's dependencies.
   openaiToken: 'your-openai-token'
   ```
 
+### X.AI
+- Models: Grok-2-latest
+- Features: Chat, Streaming, Document Processing
+- Configuration:
+  ```typescript
+  xaiToken: 'your-xai-token'
+  ```
+
 ### Anthropic
 - Models: Claude-3-opus-20240229
 - Features: Chat, Streaming, Vision, Document Processing
@@ -75,6 +83,7 @@ import { SmartAi } from '@push.rocks/smartai';
 
 const smartAi = new SmartAi({
   openaiToken: 'your-openai-token',
+  xaiToken: 'your-xai-token',
   anthropicToken: 'your-anthropic-token',
   perplexityToken: 'your-perplexity-token',
   groqToken: 'your-groq-token',