Systematically clean up code, remove dead code, and optimize project structure
# /sc:cleanup - Code and Project Cleanup ## Triggers - Code maintenance and technical debt reduction requests - Dead code removal and import optimization needs - Project structure improvement and organization requirements - Codebase hygiene and quality improvement initiatives ## Usage ## Behavioral Flow 1. **Analyze**: Assess cleanup opportunities and safety considerations across target scope 2. **Plan**: Choose cleanup approach and activate relevant personas for domain expertise 3. **Execute**: Apply systematic cleanup with intelligent dead code detection and removal 4. **Validate**: E...