Add control UI

server/main.py

@@ -1,6 +1,9 @@
 import time
+from pathlib import Path
 
 from fastapi import FastAPI, HTTPException, WebSocket, WebSocketDisconnect
+from fastapi.responses import RedirectResponse
+from fastapi.staticfiles import StaticFiles
 
 from .config import ServerSettings
 from .grid import GridManager
@@ -26,6 +29,17 @@ app = FastAPI(
     version="0.3.0",
 )
 
+client_dir = Path(__file__).resolve().parent.parent / "client"
+if client_dir.exists():
+    app.mount("/ui", StaticFiles(directory=str(client_dir), html=True), name="ui")
+
+
+@app.get("/")
+async def root():
+    if client_dir.exists():
+        return RedirectResponse("/ui/")
+    return {"status": "ok", "grid_count": manager.grid_count}
+
 
 @app.get("/health")
 def health_check() -> dict[str, str]: