fix(vscode): normalize status path comparison (#3322)

Closes #3308. Thanks for fixing the misleading Windows status diagnostic and adding the focused regression tests.

packages/vscode/src/pathUtils.test.ts

@@ -0,0 +1,24 @@
+import assert from 'node:assert/strict';
+import { describe, test } from 'node:test';
+import { pathsEqualWithNormalizedDriveLetter } from './pathUtils';
+
+describe('pathsEqualWithNormalizedDriveLetter', () => {
+  test('matches Windows paths that differ only in drive-letter case', () => {
+    assert.equal(
+      pathsEqualWithNormalizedDriveLetter('C:\\Users\\user\\project', 'c:\\Users\\user\\project'),
+      true
+    );
+  });
+
+  test('does not ignore case outside the drive letter', () => {
+    assert.equal(
+      pathsEqualWithNormalizedDriveLetter('C:\\Users\\user\\project', 'C:\\Users\\User\\project'),
+      false
+    );
+  });
+
+  test('preserves exact comparison for paths without a Windows drive letter', () => {
+    assert.equal(pathsEqualWithNormalizedDriveLetter('/work/project', '/work/project'), true);
+    assert.equal(pathsEqualWithNormalizedDriveLetter('/work/project', '/work/other'), false);
+  });
+});