fix refresh of mcp con

src/fgai/monitor.py

@@ -436,6 +436,30 @@ def write_status(status: dict[str, object], output: str) -> None:
     tmp_path.replace(output_path)
 
 
+def write_refreshing_status(output: str) -> None:
+    output_path = Path(output)
+    try:
+        current = json.loads(output_path.read_text(encoding="utf-8")) if output_path.exists() else {}
+    except (json.JSONDecodeError, OSError):
+        current = {}
+    if not isinstance(current, dict):
+        current = {}
+    previous_mcp = current.get("capabilities", {}).get("graylog_mcp", {}) if isinstance(current.get("capabilities"), dict) else {}
+    current.setdefault("status_schema", 2)
+    current["generated_at"] = int(time.time())
+    current["stale"] = False
+    current["stale_reason"] = ""
+    capabilities = current.setdefault("capabilities", {})
+    if isinstance(capabilities, dict):
+        capabilities["graylog_mcp"] = {
+            "status": "refreshing",
+            "previous_status": previous_mcp.get("status", "") if isinstance(previous_mcp, dict) else "",
+            "previous_error": previous_mcp.get("error", "") if isinstance(previous_mcp, dict) else "",
+        }
+    current["status_cache"] = {"served_from_cache": False, "reason": "refreshing"}
+    write_status(current, output)
+
+
 def monitor_loop(
     log_path: str,
     output: str,
@@ -460,6 +484,8 @@ def monitor_loop(
         runtime = ConfigStore(config_path).read() if config_path and Path(config_path).exists() else {}
         effective_llm = bool(runtime.get("llm_enabled")) if runtime else llm
         effective_model = str(runtime.get("llm_model") or llm_model or "")
+        if runtime.get("log_source") == "graylog_mcp":
+            write_refreshing_status(output)
         status = build_status(
             log_path, policy_path=policy_path, anomaly_limit=anomaly_limit,
             baseline_path=baseline_path, config_path=config_path, history_path=history_path,