fix: skip claudedesktop getEditorRoot assertion on non-Windows in test

ClaudeDesktopCoworkDataAccess.getCoworkBaseDir() intentionally returns ''
on non-Windows platforms (the feature is Windows-only). The test
'getEditorRoot: all adapters return non-empty string' was failing on Linux
CI because it called getEditorRoot() on every adapter without regard for
platform availability. Skip the claudedesktop adapter check when not on
win32.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: rajbos

vscode-extension/test/unit/ecosystemAdapters.test.ts

@@ -195,6 +195,8 @@ test('MistralVibeAdapter.getCandidatePaths: returns session log directory', () =
 test('getEditorRoot: all adapters return non-empty string', () => {
     const dummyFile = '/dummy/path/session.json';
     for (const adapter of allAdapters) {
+        // claudedesktop is Windows-only; getCoworkBaseDir() returns '' on non-Windows platforms
+        if (adapter.id === 'claudedesktop' && os.platform() !== 'win32') { continue; }
         const root = adapter.getEditorRoot(dummyFile);
         assert.ok(typeof root === 'string' && root.length > 0, `${adapter.id}: getEditorRoot should return non-empty string`);
     }