Changes:
- Updated infrastructure.yaml section (6 active services)
- Moved Portainer and Authentik to alternatives.yaml section
- Added note about Watchtower being disabled (Docker API issue)
- Clarified which services are deployed by default vs available
- Corrected stack organization to match actual deployment
- Refactored README.md, getting-started.md, quick-reference.md
- Enhanced setup-homelab.sh with 9-step automated process
- Created services-overview.md with all stacks
- Added comprehensive documentation for 57 services in docs/service-docs/
- All services include: overview, configuration, resources, educational content
- Coverage: Core, Infrastructure, Dashboards, Media, Media-Extended, Home Assistant, Productivity, Utilities, Monitoring, Development stacks
- Educational focus with links to tutorials, videos, and guides
