Implements the bd reset command for GitHub issue #479: - CLI command with flags: --hard, --force, --backup, --dry-run, --skip-init, --verbose - Impact summary showing issues/tombstones to be deleted - Confirmation prompt (skippable with --force) - Colored output for better UX - Unit tests for reset.go and git.go - Fix: use --force flag in git rm to handle staged files Part of epic bd-aydr. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>