Add unauthenticated GET /health root health check endpoint for integrations

app.py

@@ -276,6 +276,11 @@ def root_index():
     }
 
 
+@api.get("/health")
+def health_root():
+    return {"status": "ok"}
+
+
 @api.get("/api/attributes")
 def list_attributes(_: None = Depends(_require_auth)):
     items = {}