Add configurable UDP scanning and numeric IP sorting

- Add UDP_SCAN_ENABLED and UDP_PORTS environment variables to control UDP scanning
- UDP scanning disabled by default for faster scans
- Support port ranges (100-200), lists (53,67,68), or mixed formats
- Sort IPs numerically by octets in site management modal

docker-compose.yml

@@ -41,6 +41,9 @@ services:
       # Scheduler configuration (APScheduler)
       - SCHEDULER_EXECUTORS=${SCHEDULER_EXECUTORS:-2}
       - SCHEDULER_JOB_DEFAULTS_MAX_INSTANCES=${SCHEDULER_JOB_DEFAULTS_MAX_INSTANCES:-3}
+      # UDP scanning configuration
+      - UDP_SCAN_ENABLED=${UDP_SCAN_ENABLED:-false}
+      - UDP_PORTS=${UDP_PORTS:-53,67,68,69,123,161,500,514,1900}
     # Scanner functionality requires privileged mode and host network for masscan/nmap
     privileged: true
     network_mode: host