feat: implement modular lab tool structure with working CLI

- Add lab/ module structure (core, machines, deployment, monitoring)
- Add mcp/ server stub for future MCP integration
- Update main.scm to use new modular architecture
- Fix utils/config.scm to export get-current-config function
- Create comprehensive test suite with all modules passing
- Update TODO.md with completed high priority tasks

Key improvements:
- Modular design following K.I.S.S principles
- Working CLI interface for status, machines, deploy commands
- Infrastructure status checking functional
- All module tests passing
- Clean separation of pure/impure functions

CLI now works: ./main.scm status, ./main.scm machines, ./main.scm deploy <machine>

packages/lab-tool/TODO.md

@@ -0,0 +1,27 @@
+# Lab Tool Implementation Status
+
+## ✅ COMPLETED
+- Basic modular utils (logging, config, json, ssh)
+- Lab module structure (core, machines, deployment, monitoring) 
+- MCP server stub
+- Module loading tests pass
+- **NEW:** CLI interface working (status, machines, deploy commands)
+- **NEW:** Infrastructure status checking functional
+- **NEW:** All module tests passing
+
+## 📋 NEXT TASKS
+
+### High Priority
+1. ~~**Fix main.scm** - Update to use new lab modules~~ ✅
+2. ~~**Implement core functions** - Add real functionality to lab modules~~ ✅  
+3. ~~**Test CLI interface** - Ensure commands work end-to-end~~ ✅
+
+### Medium Priority  
+4. **Complete MCP server** - JSON-RPC protocol implementation
+5. **Add deployment logic** - Move from research/ to lab/deployment
+6. **Machine management** - Add discovery and health checks
+
+### Config Enhancement Notes
+- Machine folder creation with hardware config
+- Git integration for new machines
+- Seamless machine import workflow