Move execute.md from commands/workflow/ to skills/workflow-execute/SKILL.md,
update all references in workflow-plan to use Skill(skill="workflow-execute")
instead of the old /workflow:execute command path.
- Implement Phase 2: Orchestrator Design with detailed steps for generating SKILL.md
- Introduce Phase 3: Phase Files Design to create phase files with content fidelity
- Establish Phase 4: Validation & Integration to ensure structural completeness and reference integrity
- Include comprehensive validation checks for content quality and data flow consistency
- Enhance documentation with clear objectives and critical rules for each phase
