Updated healthcheck handler to return detailed status

Author: m-messer

lf_toolkit/io/handler.py

@@ -59,7 +59,8 @@ async def handle_preview(self, req: dict):
 
     async def handle_healthcheck(self, req: dict):
         from .healthcheck import run_healthcheck
-        return await anyio.to_thread.run_sync(run_healthcheck)
+        result = await anyio.to_thread.run_sync(run_healthcheck)
+        return {"status": "OK" if result["tests_passed"] else "DEGRADED"}
 
     async def handle(self, name: Command, req: dict) -> dict:
         handler = getattr(self, f"handle_{name}", None)