fixed web-control path and watchdog stoping

drive/opt/drive-ctl/server.py

@@ -9,7 +9,7 @@ SERIAL_PORT = "/dev/serial/by-id/usb-1a86_USB2.0-Serial-if00-port0"   # ggf. /de
 BAUD = 115200
 
 # Safety: if websocket stops sending, we also stop.
-STOP_AFTER_SEC = 0.35
+STOP_AFTER_SEC = 0.5
 
 app = FastAPI()
 
@@ -30,11 +30,14 @@ def send_lr(l: int, r: int):
 def health():
   return {"ok": True, "serial": SERIAL_PORT}
 
-@app.websocket("/drive-ws")
+@app.websocket("/ws")
 async def ws(websocket: WebSocket):
   global last_msg_ts
   await websocket.accept()
 
+  last_msg_ts = time.time()
+  send_lr(0, 0)
+
   async def watchdog():
     while True:
       await asyncio.sleep(0.05)