fix(npm): Replace console logging with structured Smartlog in NPM registry and silence RubyGems helper error logging

ts/rubygems/helpers.rubygems.ts

@@ -455,9 +455,8 @@ export async function extractGemMetadata(gemData: Buffer): Promise<{
     }
 
     return null;
-  } catch (error) {
-    // Log error for debugging but return null gracefully
-    console.error('Failed to extract gem metadata:', error);
+  } catch (_error) {
+    // Error handled gracefully - return null and let caller handle missing metadata
     return null;
   }
 }