fix(hub): remove trade UI stubs, public ping, multipart dep

manual_trading_hub/hub.py

@@ -39,6 +39,7 @@ HUB_BRIDGE_TOKEN = (os.getenv("HUB_BRIDGE_TOKEN") or os.getenv("CONTROL_TOKEN")
 _trust_raw = (os.getenv("HUB_TRUST_LAN", "true") or "").strip().lower()
 HUB_TRUST_LAN = _trust_raw not in ("0", "false", "no", "off")
 DIR = Path(__file__).resolve().parent
+HUB_BUILD = "20260521-no-trade-ui"
 
 
 def _is_local(host: str | None) -> bool:
@@ -431,8 +432,10 @@ def api_ping():
     return {
         "ok": True,
         "service": "manual-trading-hub",
+        "build": HUB_BUILD,
         "trade_ui": False,
         "features": ["monitor", "settings", "auth"],
+        "password_required": password_required(),
     }