Fix stale AI-extras install-hint test to match actual command

The reviewer emits a quoted, checkout-relative install command; assert the
actual _ai_extras_install_cmd() appears twice instead of a hardcoded string
that never matched (editable installs log a path).

Author: OutlyingWest

tests/ai_reviewer/test_reviewer.py

@@ -6,6 +6,7 @@
     AIReviewer,
     AIReviewerProtocol,
     UnavailableAIReviewer,
+    _ai_extras_install_cmd,
     build_ai_reviewer,
 )
 from jumper_extension.monitor.common import UnavailablePerformanceMonitor
@@ -37,7 +38,7 @@ def test_unavailable_ai_reviewer_logs_install_hint_for_review_and_resume(caplog)
     reviewer.review(shell=Mock())
     reviewer.resume(shell=Mock(), run_id="abc123", select=1)
 
-    assert caplog.text.count("pip install jumper-extension[ai]") == 2
+    assert caplog.text.count(_ai_extras_install_cmd()) == 2
 
 
 def test_ai_reviewer_starts_unattached_and_binds_monitor_via_attach():