fix(providers): share selected-file error classification

src/python/PythonPycProvider.ts

@@ -1,3 +1,4 @@
+import { isSelectedRegularFileError } from "../filesystem/RegularFile.js";
 import {
   artifactFileCancellationCause,
   artifactFilePrimaryFailure,
@@ -96,11 +97,7 @@ const failureForPrimary = (cause: unknown, input: InspectPythonPycInput) => {
       return new AnalysisAccessDeniedError(OPERATION, input.path, cause.code, {
         cause,
       });
-    if (
-      ["ENOENT", "ENOTDIR", "ELOOP", "ENAMETOOLONG"].includes(
-        String(cause.code),
-      )
-    )
+    if (isSelectedRegularFileError(cause))
       return new AnalysisInputError(OPERATION, { cause }, [
         {
           path: ["path"],