- Update HandleBilling to accept CLIConfig, return error, and use uiContext for all output
- Update HandleConfig to accept CLIConfig, return error, and use uiContext for all output
- Replace manual colorizer/icon initialization with uiContext helper methods
- Simplify error handling with uiContext.errorln, warn, success, info, muted methods
- Replace direct table creation with uiContext.newTable()
- Add HandleDeploy with command routing: status, start, rollback, history
- Add showDeployHelp with command descriptions and usage examples
- Add showDeployStatus to display environment status with version and last deploy timestamp
- Add startDeployment to initiate deployment with build, test, package, and Kubernetes deployment steps
- Add rollbackDeployment to revert to previous version with validation and
nutcas3