test: feed meanwhile digest canned response after Wave 6b cross-feature merge

tests/test_meanwhile_turn_flow.py

@@ -394,7 +394,19 @@ def test_meanwhile_scene_close_writes_per_pov_for_both_bots_only(
             "relationship_summary": "",
         }
     )
-    close_mock = MockLLMClient(canned=[pov_payload_host, pov_payload_guest])
+    # T65 added a meanwhile digest summarize call after per-POV writes
+    # for meanwhile scenes. T58's thread detection is wrapped in try/except
+    # so its IndexError is swallowed gracefully.
+    digest_payload = json.dumps(
+        {
+            "summary": "While you were away, BotA and BotB talked quietly.",
+            "knowledge_facts": [],
+            "relationship_summary": "",
+        }
+    )
+    close_mock = MockLLMClient(
+        canned=[pov_payload_host, pov_payload_guest, digest_payload]
+    )
 
     import asyncio as _asyncio