Remove the entire YAML-based workflow system in preparation for redesigning templates as native Beads. Removed: - cmd/bd/templates/workflows/*.yaml - cmd/bd/workflow.go - internal/types/workflow.go (WorkflowTemplate types) The new design will use regular Beads with a template label, and a clone-with-substitution operation for instantiation. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>