feat: remove redundant project attribution comments from GNS3-Copilot modules

Removed repetitive "This module is part of the GNS3-Copilot project" and GitHub URL comments from multiple module docstrings. These comments were redundant since the project information is already established in the main package documentation. This cleanup improves code readability and reduces maintenance overhead by eliminating duplicate attribution statements across the codebase.

gns3server/agent/gns3_copilot/utils/__init__.py

@@ -21,8 +21,6 @@
 #
 """
 
-This module is part of the GNS3-Copilot project.
-GitHub: https://github.com/yueguobin/gns3-copilot
 GNS3-Copilot Public Model Package
 
 This package provides reusable public models and utilities for GNS3 network automation tasks.
@@ -55,7 +53,6 @@ __author__ = "Guobin Yue"
 __description__ = "AI-powered network automation assistant for GNS3"
 __url__ = "https://github.com/yueguobin/gns3-copilot"
 
-
 # Export main utility functions
 __all__ = [
     "get_device_ports_from_topology",