5c34143b52
Reduces ICMP concurrency from 100 to 10 workers when soft_scan=true, spreading out probes to avoid rate-limiting on managed switches and APs. The option is hidden in the UI when TCP check is active (redundant). Update README (en/fr/es), docs/backend.md with the new scan modes table and a troubleshooting entry for ICMP rate-limiting. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>