chore: release version 1.2.0

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

Co-Authored-By: Claude <[email protected]>

Release v1.1.0: Interactive List Navigation

- Interactive list mode with arrow key navigation (ccenv list -i)
- Direct environment switching from interactive list
- Automatic environment variable application via shell integration

- Enhanced shell wrapper for seamless environment switching
- Improved user guidance and error messaging
- Unified UX across commands with consistent styling
- Better support for both manual and automated workflows

- Added inquirer.js for interactive UI components
- Enhanced shell integration script for automatic env var application
- Improved error handling and user feedback systems
- Updated CLI version display and help documentation

Full changelog: https://github.com/hqwuzhaoyi/ccenv/blob/main/CHANGELOG.md

feat: add GitHub Actions workflow for package publishing