refactor: Rename package from wikijs-python-sdk to py-wikijs and migrate to GitHub

Complete package renaming and platform migration:

Package Name Changes:
- Rename package from 'wikijs-python-sdk' to 'py-wikijs'
- Update setup.py package name
- Update pyproject.toml package name
- Users can now install with: pip install py-wikijs

URL Migration (Gitea → GitHub):
- Replace all Gitea URLs with GitHub URLs
- Update repository: github.com/l3ocho/py-wikijs
- Update issue tracker: github.com/l3ocho/py-wikijs/issues
- Update documentation links
- Fix URL path format (/src/branch/main/ → /blob/main/)

Documentation Updates:
- Update README.md badges (PyPI, GitHub)
- Update installation instructions (pip install py-wikijs)
- Update all doc references to new package name
- Update all examples with GitHub URLs
- Update DEPLOYMENT_READY.md with new package name
- Update deployment.md with new package name

Testing:
- Successfully built py_wikijs-0.1.0.tar.gz (138 KB)
- Successfully built py_wikijs-0.1.0-py3-none-any.whl (66 KB)
- Package installs correctly: pip install py-wikijs
- Imports work: from wikijs import WikiJSClient
- Package metadata correct (Home-page: github.com/l3ocho/py-wikijs)

Breaking Changes:
- Package name changed from wikijs-python-sdk to py-wikijs
- Repository migrated from Gitea to GitHub
- All URLs updated to GitHub

Users should now:
pip install py-wikijs  # Instead of wikijs-python-sdk

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

docs/compatibility.md

@@ -379,7 +379,7 @@ client_v3 = WikiJSClientV3(...)  # Force 3.x API
 
 - **Documentation**: [Full documentation](../README.md)
 - **Examples**: [Usage examples](../examples/)
-- **Issues**: [Report compatibility issues](https://gitea.hotserv.cloud/lmiranda/py-wikijs/issues)
+- **Issues**: [Report compatibility issues](https://github.com/l3ocho/py-wikijs/issues)
 
 ### Resources
 
@@ -402,4 +402,4 @@ client_v3 = WikiJSClientV3(...)  # Force 3.x API
 **Last Updated**: October 2025
 **Next Review**: When Wiki.js 3.0 beta is released
 
-For the latest compatibility information, always check this guide or visit the [project repository](https://gitea.hotserv.cloud/lmiranda/py-wikijs).
+For the latest compatibility information, always check this guide or visit the [project repository](https://github.com/l3ocho/py-wikijs).