add chache for last known good in sqlite..

src/fgai/cli.py

@@ -213,6 +213,7 @@ def run_monitor(args: argparse.Namespace) -> int:
         baseline_path=args.baseline_db,
         config_path=args.config_file,
         history_path=args.history_db,
+        status_cache_path=args.status_cache_db,
     )
     return 0
 
@@ -421,6 +422,7 @@ def build_parser() -> argparse.ArgumentParser:
     monitor.add_argument("--baseline-db", default="state/fgai-baseline.sqlite3", help="SQLite database for historical behavior baselines")
     monitor.add_argument("--config-file", default="state/fgai-config.json", help="Runtime configuration written by dashboard")
     monitor.add_argument("--history-db", default="state/signalscope-history.sqlite3", help="Aggregate history database for dashboard trends")
+    monitor.add_argument("--status-cache-db", default="state/signalscope-status-cache.sqlite3", help="SQLite cache for last successful dashboard status")
     monitor.add_argument("--llm", action="store_true", help="Generate cached Ollama analyst note for dashboard")
     monitor.add_argument("--llm-interval", type=int, default=300, help="Seconds between Ollama dashboard assessments")
     monitor.add_argument("--model", default=None, help="Ollama model name")