- Implement SingleInstance class using QSharedMemory and file locking
- Cross-platform support with fcntl on Unix/macOS and file creation on Windows
- Show warning dialog when user tries to launch second instance
- Automatic cleanup of resources on application exit
- Graceful handling of instance detection failures
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Update all imports to use relative imports instead of cluster4npu_ui.* prefix
- Remove export configuration functionality from dashboard menu
- Remove performance analysis action from pipeline menu
- Update dependencies in pyproject.toml to include NodeGraphQt and PyQt5
- Maintain clean import structure across all modules
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
