Add HTTPS configuration management system

- Add HTTPSConfig model for managing HTTPS settings
- Add admin routes for HTTPS configuration management
- Add beautiful admin template for HTTPS configuration
- Add database migration for https_config table
- Add CLI utility for HTTPS management
- Add setup script for automated configuration
- Add Caddy configuration generator and manager
- Add comprehensive documentation (3 guides)
- Add HTTPS Configuration card to admin dashboard
- Implement input validation and security features
- Add admin-only access control with audit trail
- Add real-time configuration preview
- Integrate with existing Caddy reverse proxy

Features:
- Enable/disable HTTPS from web interface
- Configure domain, hostname, IP address, port
- Automatic SSL certificate management via Let's Encrypt
- Real-time Caddyfile generation and reload
- Full audit trail with admin username and timestamps
- Support for HTTPS and HTTP fallback access points
- Beautiful, mobile-responsive UI

Modified files:
- app/models/__init__.py (added HTTPSConfig import)
- app/blueprints/admin.py (added HTTPS routes)
- app/templates/admin/admin.html (added HTTPS card)
- docker-compose.yml (added Caddyfile mount and admin port)

New files:
- app/models/https_config.py
- app/blueprints/https_config.html
- app/utils/caddy_manager.py
- https_manager.py
- setup_https.sh
- migrations/add_https_config_table.py
- migrations/add_email_to_https_config.py
- HTTPS_STATUS.txt
- Documentation files (3 markdown guides)

setup_https.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+# Setup script for HTTPS Configuration Management
+
+echo "Setting up HTTPS Configuration Management..."
+echo ""
+
+# Step 1: Run migration
+echo "📦 Creating https_config database table..."
+python /app/migrations/add_https_config_table.py
+
+if [ $? -eq 0 ]; then
+    echo "✅ Database migration completed successfully!"
+else
+    echo "❌ Database migration failed!"
+    exit 1
+fi
+
+echo ""
+echo "✅ HTTPS Configuration Management is now ready!"
+echo ""
+echo "Next steps:"
+echo "1. Start the application: docker-compose up -d"
+echo "2. Log in to the admin panel"
+echo "3. Navigate to: Admin Panel → 🔒 HTTPS Configuration"
+echo "4. Configure your HTTPS settings:"
+echo "   - Enable HTTPS"
+echo "   - Set hostname: digiserver"
+echo "   - Set domain: digiserver.sibiusb.harting.intra"
+echo "   - Set IP: 10.76.152.164"
+echo "5. Save the configuration"
+echo ""
+echo "📖 For detailed information, see HTTPS_CONFIGURATION.md"