add ghc script (#471)

* feat: Add GitHub API token access script with Copilot chat capabilities

- Introduced a new Python script for accessing GitHub API tokens, including support for GitHub Copilot's internal APIs and chat functionalities.
- Implemented token management, validation, and retrieval processes, enhancing user interaction with Copilot.
- Updated VSCode settings to use the Black formatter for Python code formatting.

This addition significantly improves the integration of GitHub Copilot into the development workflow, providing users with a streamlined method for token management and chat interactions.

* add ghc script

Author: plusplusoneplusplus

.vscode/settings.json

@@ -8,6 +8,6 @@
   "python.formatting.blackPath": "uv run black",
   "editor.formatOnSave": true,
   "[python]": {
-    "editor.defaultFormatter": "ms-python.python"
+    "editor.defaultFormatter": "ms-python.black-formatter"
   }
 }