fix: resolve cron auto-delivery target after dotenv reload

Resolve cron auto-delivery targets after reloading .env so bare-platform deliveries pick up home-channel settings before the agent run. Add a regression test for the dotenv-backed home-channel path and clean up scheduler tests that were leaking un-awaited send coroutines.

tests/cron/test_scheduler.py

@@ -2,7 +2,8 @@
 
 import json
 import logging
-from unittest.mock import patch, MagicMock
+import os
+from unittest.mock import AsyncMock, patch, MagicMock
 
 import pytest
 
@@ -107,7 +108,7 @@ class TestDeliverResultMirrorLogging:
         mock_cfg.platforms = {Platform.TELEGRAM: pconfig}
 
         with patch("gateway.config.load_gateway_config", return_value=mock_cfg), \
-             patch("asyncio.run", return_value=None), \
+             patch("tools.send_message_tool._send_to_platform", new=AsyncMock(return_value={"success": True})), \
              patch("gateway.mirror.mirror_to_session", side_effect=ConnectionError("network down")):
             job = {
                 "id": "test-job",
@@ -140,9 +141,8 @@ class TestDeliverResultMirrorLogging:
         }
 
         with patch("gateway.config.load_gateway_config", return_value=mock_cfg), \
-             patch("tools.send_message_tool._send_to_platform", return_value={"success": True}) as send_mock, \
-             patch("gateway.mirror.mirror_to_session") as mirror_mock, \
-             patch("asyncio.run", side_effect=lambda coro: None):
+             patch("tools.send_message_tool._send_to_platform", new=AsyncMock(return_value={"success": True})) as send_mock, \
+             patch("gateway.mirror.mirror_to_session") as mirror_mock:
             _deliver_result(job, "hello")
 
         send_mock.assert_called_once()
@@ -196,6 +196,60 @@ class TestRunJobSessionPersistence:
         assert kwargs["session_id"].startswith("cron_test-job_")
         fake_db.close.assert_called_once()
 
+    def test_run_job_sets_auto_delivery_env_from_dotenv_home_channel(self, tmp_path, monkeypatch):
+        job = {
+            "id": "test-job",
+            "name": "test",
+            "prompt": "hello",
+            "deliver": "telegram",
+        }
+        fake_db = MagicMock()
+        seen = {}
+
+        (tmp_path / ".env").write_text("TELEGRAM_HOME_CHANNEL=-2002\n")
+        monkeypatch.delenv("TELEGRAM_HOME_CHANNEL", raising=False)
+        monkeypatch.delenv("HERMES_CRON_AUTO_DELIVER_PLATFORM", raising=False)
+        monkeypatch.delenv("HERMES_CRON_AUTO_DELIVER_CHAT_ID", raising=False)
+        monkeypatch.delenv("HERMES_CRON_AUTO_DELIVER_THREAD_ID", raising=False)
+
+        class FakeAgent:
+            def __init__(self, *args, **kwargs):
+                pass
+
+            def run_conversation(self, *args, **kwargs):
+                seen["platform"] = os.getenv("HERMES_CRON_AUTO_DELIVER_PLATFORM")
+                seen["chat_id"] = os.getenv("HERMES_CRON_AUTO_DELIVER_CHAT_ID")
+                seen["thread_id"] = os.getenv("HERMES_CRON_AUTO_DELIVER_THREAD_ID")
+                return {"final_response": "ok"}
+
+        with patch("cron.scheduler._hermes_home", tmp_path), \
+             patch("hermes_state.SessionDB", return_value=fake_db), \
+             patch(
+                 "hermes_cli.runtime_provider.resolve_runtime_provider",
+                 return_value={
+                     "api_key": "***",
+                     "base_url": "https://example.invalid/v1",
+                     "provider": "openrouter",
+                     "api_mode": "chat_completions",
+                 },
+             ), \
+             patch("run_agent.AIAgent", FakeAgent):
+            success, output, final_response, error = run_job(job)
+
+        assert success is True
+        assert error is None
+        assert final_response == "ok"
+        assert "ok" in output
+        assert seen == {
+            "platform": "telegram",
+            "chat_id": "-2002",
+            "thread_id": None,
+        }
+        assert os.getenv("HERMES_CRON_AUTO_DELIVER_PLATFORM") is None
+        assert os.getenv("HERMES_CRON_AUTO_DELIVER_CHAT_ID") is None
+        assert os.getenv("HERMES_CRON_AUTO_DELIVER_THREAD_ID") is None
+        fake_db.close.assert_called_once()
+
 
 class TestRunJobConfigLogging:
     """Verify that config.yaml parse failures are logged, not silently swallowed."""