Add enterprise WeChat intelligent robot interface support

[Copilot]

This PR implements the enterprise WeChat intelligent robot interface as requested, providing comprehensive API support for managing and interacting with AI-powered robots in WeChat Work applications.

Overview

The implementation adds a new WxCpIntelligentRobotService that enables developers to:

• Create and manage intelligent robots with customizable names, descriptions, and avatars
• Conduct AI-powered conversations with session management for context continuity
• Update robot configurations including enabling/disabling robot status
• Reset conversation sessions to clear chat history when needed
• Delete robots when no longer required

Key Components

Service Interface

WxCpService wxCpService = ...; // Initialize WeChat Work service
WxCpIntelligentRobotService robotService = wxCpService.getIntelligentRobotService();

// Create a new intelligent robot
WxCpIntelligentRobotCreateRequest request = new WxCpIntelligentRobotCreateRequest();
request.setName("Customer Service Bot");
request.setDescription("AI-powered customer support");
WxCpIntelligentRobotCreateResponse response = robotService.createRobot(request);

// Start intelligent conversation
WxCpIntelligentRobotChatRequest chatRequest = new WxCpIntelligentRobotChatRequest();
chatRequest.setRobotId(response.getRobotId());
chatRequest.setUserid("user123");
chatRequest.setMessage("How can I help you today?");
WxCpIntelligentRobotChatResponse chatResponse = robotService.chat(chatRequest);

API Endpoints

The implementation follows WeChat Work's official API documentation and includes endpoints for:

• POST /cgi-bin/intelligent_robot/create - Create robots
• POST /cgi-bin/intelligent_robot/update - Update robot configuration
• POST /cgi-bin/intelligent_robot/get - Retrieve robot information
• POST /cgi-bin/intelligent_robot/chat - Conduct AI conversations
• POST /cgi-bin/intelligent_robot/reset_session - Reset conversation context
• POST /cgi-bin/intelligent_robot/delete - Remove robots

Bean Classes

Complete set of request/response classes with proper JSON serialization:

• WxCpIntelligentRobot - Robot entity with status and metadata
• WxCpIntelligentRobotCreateRequest/Response - Robot creation
• WxCpIntelligentRobotChatRequest/Response - AI conversation handling
• WxCpIntelligentRobotUpdateRequest - Robot configuration updates

Integration

The service follows existing WxJava patterns and integrates seamlessly:

• Added to main WxCpService interface as getIntelligentRobotService()
• Properly initialized in BaseWxCpServiceImpl
• Includes comprehensive documentation and usage examples
• All code follows project checkstyle standards and passes validation

This enhancement enables developers to build sophisticated AI-powered customer service, internal assistants, and automated conversation systems within enterprise WeChat applications.

Fixes #3682.

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