fix refresh of mcp con

tests/test_monitor.py

@@ -5,7 +5,7 @@ from pathlib import Path
 from unittest.mock import patch
 
 from fgai.history import StatusSnapshotStore
-from fgai.monitor import add_llm_assessment, build_status, cached_status_with_error, write_status
+from fgai.monitor import add_llm_assessment, build_status, cached_status_with_error, write_refreshing_status, write_status
 
 
 class MonitorTests(unittest.TestCase):
@@ -39,6 +39,31 @@ class MonitorTests(unittest.TestCase):
 
             self.assertTrue(output.exists())
 
+    def test_write_refreshing_status_clears_stale_mcp_error(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            output = Path(tmp) / "status.json"
+            output.write_text(
+                json.dumps(
+                    {
+                        "status_schema": 2,
+                        "stale": True,
+                        "stale_reason": "live_mcp_error",
+                        "capabilities": {"graylog_mcp": {"status": "error", "error": "old dns error"}},
+                    }
+                ),
+                encoding="utf-8",
+            )
+
+            write_refreshing_status(str(output))
+
+            status = json.loads(output.read_text(encoding="utf-8"))
+            self.assertFalse(status["stale"])
+            self.assertEqual(status["stale_reason"], "")
+            self.assertEqual(status["capabilities"]["graylog_mcp"]["status"], "refreshing")
+            self.assertEqual(status["capabilities"]["graylog_mcp"]["previous_status"], "error")
+            self.assertEqual(status["capabilities"]["graylog_mcp"]["previous_error"], "old dns error")
+            self.assertFalse(status["status_cache"]["served_from_cache"])
+
     def test_profile_readiness_includes_stream_and_profile_names(self):
         with tempfile.TemporaryDirectory() as tmp:
             config_path = Path(tmp) / "config.json"