- Add OSM_IGNORE_REGISTRY env var to skip auto binary installation and health checks
- Update health check to display warning when binary folder is empty but OSM_IGNORE_REGISTRY is set
- Update installRequiredBinaries to skip installation when OSM_IGNORE_REGISTRY=true
- Enhance DownloadFile with retry logic and wget/curl fallback for resilient downloads
- Refactor download function to validate content length and handle transient failures
- Refactor test code to use switch statements instead of if-else chains