Add Caddy reverse proxy support to HOPS

### New Features
- Added Caddy reverse proxy as a service option
- Proper Docker container configuration with ports 80, 443, 2019
- Health check monitoring via Caddy admin API
- Volume mounts for Caddyfile, site content, and data persistence
- Integration with existing service selection and categorization

### Configuration Scope
- HOPS provides: Container setup, volume mounts, networking, health checks
- User provides: Caddyfile configuration, routing rules, SSL settings
- Clear documentation about configuration responsibilities
- Example Caddyfile provided in README

### Documentation Updates
- Updated README.md with Caddy service listing and configuration guide
- Updated CLAUDE.md with Caddy in supported services
- Added comprehensive configuration scope documentation
- Updated version references to 3.2.0

### Technical Implementation
- Added generate_caddy() function to services file
- Integrated Caddy into service selection switch
- Added port mapping for conflict detection (80, 443, 2019)
- Categorized under proxy & security services
- Added to available services listing

This addition provides users with another reverse proxy option while
maintaining HOPS' philosophy of providing infrastructure while allowing
users to maintain control over their specific configuration needs.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

README.md

@@ -15,6 +15,9 @@
 - **🚀 Docker Desktop Integration**: Improved Docker Desktop startup and management
 - **⚡ Better Error Handling**: Enhanced error messages and troubleshooting for macOS
 
+### New Features
+- **🌐 Caddy Support**: Added Caddy reverse proxy as a service option (configuration not included)
+
 ### Bug Fixes
 - **🔧 Fixed password generation**: Resolved `shuf` command and encoding issues on macOS
 - **🐳 Fixed container creation**: Resolved Docker Compose working directory issues
@@ -114,6 +117,7 @@ HOPS (Homelab Orchestration Provisioning Script) automates the deployment of a c
 ### 🔒 Reverse Proxy & Security
 - **Traefik** - Modern reverse proxy with automatic SSL
 - **Nginx Proxy Manager** - Easy-to-use reverse proxy
+- **Caddy** - Automatic HTTPS web server (*configuration not included*)
 - **Authelia** - Authentication and authorization server
 
 ### 📈 Monitoring & Management
@@ -322,6 +326,33 @@ DOMAIN=yourdomain.com
 ACME_EMAIL=admin@yourdomain.com
 ```
 
+### Service-Specific Configuration
+
+#### Caddy Configuration
+**Important**: HOPS provides the Caddy container but **does not include Caddyfile configuration**. Users must provide their own Caddyfile.
+
+```bash
+# Create Caddy configuration directory
+mkdir -p ~/hops/config/caddy
+
+# Create your Caddyfile (example)
+cat > ~/hops/config/caddy/Caddyfile << 'EOF'
+# Example Caddyfile - customize as needed
+example.com {
+    reverse_proxy jellyfin:8096
+}
+
+api.example.com {
+    reverse_proxy overseerr:5055
+}
+EOF
+
+# Caddy will automatically handle HTTPS certificates
+# Documentation: https://caddyserver.com/docs/
+```
+
+**Configuration Scope**: HOPS installs and runs the Caddy container with proper volume mounts, but all routing, SSL, and proxy configuration is the user's responsibility.
+
 ### Service Management Commands
 ```bash
 # NEW: User operations script (runs without sudo)