8b4280d5dd
Modified `is_private_ip` in `app/utils/network.py` to fail securely by returning True (blocking the request) when a hostname cannot be resolved. The previous implementation failed open, creating a risk for Server-Side Request Forgery (SSRF) and DNS rebinding attacks. Updated corresponding tests to expect the secure behavior. Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>