fix(test): add gitAuthMode to orchestrator-folders test mock

The test mock was missing gitAuthMode, causing useHeaderAuth to
default to true and strip the token from repo URLs. Adding
gitAuthMode: 'url' restores the expected URL-mode behavior.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/model/orchestrator/options/orchestrator-folders.test.ts

@@ -11,6 +11,7 @@ jest.mock('../orchestrator', () => ({
       buildPath: 'Builds',
       maxRetainedWorkspaces: 0,
       gitPrivateToken: 'ghp_test123',
+      gitAuthMode: 'url',
       orchestratorRepoName: 'game-ci/unity-builder',
       githubRepo: 'user/my-game',
     },