feat: add MCP plugin support and optimize AI service configuration

- Add UIXT runner with MCP plugin support
   - Refactor AI service options handling
   - Optimize configuration parsing for LLM and CV services
   - Update dependencies to latest versions

uixt/cache.go

@@ -171,6 +171,7 @@ func createXTDriverWithConfig(config DriverCacheConfig) (*XTDriver, error) {
 		// Default AI options
 		aiOpts = []option.AIServiceOption{
 			option.WithCVService(option.CVServiceTypeVEDEM),
+			option.WithLLMConfig(option.RecommendedConfigurations()["ui_focused"]),
 		}
 	}