refactor: centralize cron session metadata keys

tests/agent/test_loop_save_turn.py

@@ -8,6 +8,7 @@ from nanobot.agent.context import ContextBuilder
 from nanobot.agent.loop import AgentLoop
 from nanobot.bus.events import InboundMessage
 from nanobot.bus.queue import MessageBus
+from nanobot.cron.automation import AUTOMATION_HISTORY_META, AUTOMATION_TRIGGER_META
 from nanobot.providers.base import LLMResponse
 from nanobot.session.goal_state import GOAL_STATE_KEY
 from nanobot.session.manager import Session, SessionManager
@@ -65,6 +66,41 @@ def test_agent_loop_llm_runtime_reflects_current_provider_and_model(tmp_path: Pa
     assert runtime.model == "next-model"
 
 
+def test_persist_automation_turn_uses_distinct_history_marker(tmp_path: Path) -> None:
+    loop = _make_full_loop(tmp_path)
+    session = loop.sessions.get_or_create("websocket:auto")
+    prompt_ref = {"id": "cron.agent_turn.reminder", "version": 1, "sha256": "abc"}
+
+    persisted = loop._persist_user_message_early(
+        InboundMessage(
+            channel="websocket",
+            sender_id="cron",
+            chat_id="auto",
+            content="Automation: internal prompt",
+            metadata={
+                AUTOMATION_TRIGGER_META: {
+                    "job_id": "job-1",
+                    "job_name": "Daily check",
+                    "run_id": "job-1:1",
+                    "prompt_ref": prompt_ref,
+                    "persist_content": "Scheduled automation triggered: Daily check",
+                }
+            },
+        ),
+        session,
+    )
+
+    assert persisted is True
+    message = session.messages[-1]
+    assert message["content"] == "Scheduled automation triggered: Daily check"
+    assert message[AUTOMATION_HISTORY_META] is True
+    assert AUTOMATION_TRIGGER_META not in message
+    assert message["automation_id"] == "job-1"
+    assert message["automation_name"] == "Daily check"
+    assert message["automation_run_id"] == "job-1:1"
+    assert message["automation_prompt_ref"] == prompt_ref
+
+
 def test_clean_generated_title_strips_reasoning_tags() -> None:
     assert clean_generated_title("<think>reasoning</think> WebUI polish") == "WebUI polish"
     assert clean_generated_title("Title: <think> The user said hello") == ""

tests/agent/test_runner_injections.py

@@ -592,8 +592,8 @@ async def test_waiting_dispatch_does_not_replace_active_pending_queue(tmp_path):
 @pytest.mark.asyncio
 async def test_followup_routed_to_pending_queue(tmp_path):
     """Unified-session follow-ups should route into the active pending queue."""
-    from nanobot.agent.loop import UNIFIED_SESSION_KEY
     from nanobot.bus.events import InboundMessage
+    from nanobot.session.keys import UNIFIED_SESSION_KEY
 
     loop = _make_loop(tmp_path)
     loop._unified_session = True