bump version to 1.8.0

remove oneshot command

chore: bump version to 1.7.0 and add completion install script

refactor: improve code organization and add dotenv support

feat: Add `prefill` option to `ask` method to pre-populate prompts with default values.

docs: add fork command documentation

feat: add fork command for duplicating configurations

feat: add interactive confirmation prompt for profile removal

feat: offer immediate Claude startup after adding profile, remove edit command

style: tidy formatting and bump patch version

fix: harden profile env merge and cleanup

docs: remove emojis from documentation for professional tone

chore: exclude promo directory from npm package

chore: release v1.4.1 with start/safe-start commands and improvements

docs: highlight start/safe-start as primary usage in README