feat(agent): add gns3-copilot AI assistant integration module

Integrate the gns3-copilot AI assistant module to provide intelligent
   automation and interaction capabilities for GNS3 network emulation.

   Key components:
   - AI agent framework with LLM integration (supports Qwen vision model)
   - GNS3 client library for project topology management
   - Extensive prompt templates for various network operation scenarios
   - Tool library for node creation, linking, configuration, and management
   - Support for English level assessment (A1-C2) and specialized personas
   - Network drawing and topology visualization tools
   - Linux device automation via Nornir/Telnetlib
   - Window controller for UI interaction

   Features:
   - Multi-modal AI agent with vision capabilities
   - Automated network topology deployment and configuration
   - Interactive node and drawing management
   - File-based project operations (read, write, list)
   - Specialized prompts for different scenarios and skill levels
   - Comprehensive tool set for network device management

gns3server/agent/gns3_copilot/utils/__init__.py

@@ -0,0 +1,50 @@
+"""
+FlowNet-Lab Public Model Package
+
+This package provides reusable public models and utilities for GNS3 network automation tasks.
+It contains common functionality that can be shared across different tools and modules.
+
+Main modules:
+- get_gns3_device_port: Device port information retrieval from GNS3 topology
+- parse_tool_content: Tool execution result parsing and formatting utilities
+
+Author: Guobin Yue
+"""
+
+# Import main utility functions
+from .app_config import (
+    DEFAULT_CONFIG,
+    get_all_config,
+    get_config,
+    init_config,
+    reset_config,
+    set_config,
+)
+from .get_gns3_device_port import get_device_ports_from_topology
+from .parse_tool_content import format_tool_response, parse_tool_content
+
+# Dynamic version management
+try:
+    from importlib.metadata import version
+
+    __version__ = version("gns3-copilot")
+except Exception:
+    __version__ = "unknown"
+
+__author__ = "Guobin Yue"
+__description__ = "AI-powered network automation assistant for GNS3"
+__url__ = "https://github.com/yueguobin/gns3-copilot"
+
+
+# Export main utility functions
+__all__ = [
+    "DEFAULT_CONFIG",
+    "get_config",
+    "set_config",
+    "get_all_config",
+    "init_config",
+    "reset_config",
+    "get_device_ports_from_topology",
+    "parse_tool_content",
+    "format_tool_response",
+]