NativeLibrarySymbolProcessorProvider
KSP entry point that instantiates NativeLibrarySymbolProcessor.
Also honors the quarkdown.psi.debug=true processor option, which turns on LoggingPsiDiagnostics so every reflective PSI failure is surfaced through the KSP logger. Intended as a diagnostic aid during KSP upgrades; disabled by default because a swallowed failure typically means "extractor could not read some optional piece of source" and is not user-actionable.