323729e1ab
API: rejects ip_range outside 10.0.0.0/8, 172.16.0.0/12, or 192.168.0.0/16 with a 400 error before saving to config. UI: isRFC1918Cidr() validates on every keystroke; error message shown inline below the field; Save Identity button disabled while the value is invalid. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>