補上 RAG hit logger 回歸測試

tests/test_ai_call_logger.py

@@ -144,6 +144,17 @@ def test_context_manager_set_error_without_raise(reset_state):
     assert 'timeout' in rec['error']
 
 
+def test_context_manager_marks_rag_hit(reset_state):
+    captured = reset_state
+    with log_ai_call('openclaw_qa', 'gcp_ollama', 'qwen3:14b') as ctx:
+        ctx.set_rag_hit(True)
+
+    assert _wait_for_async(captured, 1)
+    rec = captured[0]
+    assert rec['status'] == 'ok'
+    assert rec['rag_hit'] is True
+
+
 # ─────────────────────────────────────────────────────────────────────────────
 # decorator 測試
 # ─────────────────────────────────────────────────────────────────────────────