feat: post-turn state-update pass per present entity

tests/test_turn_flow.py

@@ -36,11 +36,25 @@ def client(tmp_path, monkeypatch):
         {"segments": [{"kind": "dialogue", "text": "hello"}]}
     )
     canned_response = "Hi there."
+    # Two state-update classifier calls fire after the assistant_turn
+    # (one per directed edge: bot->you, you->bot). We feed them benign
+    # zero-delta JSON so the existing assertions about ``user_turn`` /
+    # ``assistant_turn`` are unaffected.
+    canned_state_update = json.dumps(
+        {"affinity_delta": 0, "trust_delta": 0, "knowledge_facts": []}
+    )
 
     # Import here so env vars are visible to the dependency lookup.
     from chat.web.kickoff import get_llm_client
 
-    mock = MockLLMClient(canned=[canned_parse, canned_response])
+    mock = MockLLMClient(
+        canned=[
+            canned_parse,
+            canned_response,
+            canned_state_update,
+            canned_state_update,
+        ]
+    )
     app.dependency_overrides[get_llm_client] = lambda: mock
 
     with TestClient(app) as c: