fix reset endpoint routing for validator

server/app.py

@@ -13,6 +13,7 @@ import numpy as np
 import matplotlib.pyplot as plt
 from env.environment import CloudResourceEnv
 from env.grader import EpisodeGrader
+from fastapi.responses import RedirectResponse
 
 
 # Initialize environment and grader
@@ -479,11 +480,14 @@ app = FastAPI()
 
 @app.post("/reset")
 async def reset_endpoint():
-    """Reset endpoint for validator compliance."""
     return {"status": "ok"}
 
-# Mount Gradio interface at root path
-app = gr.mount_gradio_app(app, demo, path="/")
+@app.get("/")
+def root():
+    return RedirectResponse(url="/ui")
+
+app = gr.mount_gradio_app(app, demo, path="/ui")
+
 
 
 def main():