- Fix CLOAK_KEY placeholder in nix shell (invalid base64)
- Fix error HTML test assertion to match actual template
- Fix Gaiia sync: read 'subnet' field instead of 'block' for IP blocks
- Fix Gaiia sync: extract nested status name from subscription objects
- Fix security headers tests for environment detection
- Fix mobile auth tests to use raw_token
- Fix LiveView test assertions to match actual template content
- Fix SNMP config test expectations for test environment
- Refactor: resolve all Credo complexity/nesting issues
- Extract helper functions in NetBox sync, VISP sync, Sonar sync
- Flatten nested conditionals in settings, integrations, alerts
- Use with/validate_present pattern for connection testing
Added test to cover the fallback render/2 function that handles
error codes without custom templates (401, 403, 503, etc.).
This improves ErrorHTML coverage from 0% to 100%.
