Add lightweight integration tests to verify:
- C NIF module loads properly in web application
- MIB library initializes successfully
- Standard MIB name resolution works
- MibTranslator wrapper functions correctly
- Error handling for invalid MIB names
- SNMP profiles can be loaded (uses MIB translation)
These tests verify the C NIF works end-to-end without checking
full page content, focusing on functional verification only.
