Add EZ-Homelab Enhanced Setup System
- Complete modular bash-based setup system replacing Python TUI
- Phase 1-4 implementation: Core Infrastructure, Configuration Management, Deployment Engine, Service Orchestration & Management
- 9 production-ready scripts: preflight.sh, setup.sh, pre-deployment-wizard.sh, localize.sh, generalize.sh, validate.sh, deploy.sh, service.sh, monitor.sh, backup.sh, update.sh
- Shared libraries: common.sh (utilities), ui.sh (text interface)
- Template-based configuration system with environment variable substitution
- Comprehensive documentation: PRD, standards, and quick reference guides
- Automated backup, monitoring, and update management capabilities
- Cross-platform compatibility with robust error handling and logging
f141848a10