Fix ONVIF library integration and improve stream discovery

- Fix ONVIF CallMethod response parsing (returns *http.Response, not structs)
- Add proper XML SOAP envelope parsing for GetProfiles and GetStreamUri
- Use correct types from xsd/onvif package (StreamType, TransportProtocol, ReferenceToken)
- Add strix binary to .gitignore
- Update configuration and API routes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -1,5 +1,6 @@
 # Binaries
 bin/
+strix
 *.exe
 *.exe~
 *.dll