feat: 基础 SignalR 服务器支持

app/router/signalr/hub/__init__.py

@@ -0,0 +1,15 @@
+from __future__ import annotations
+
+from .hub import Hub
+from .metadata import MetadataHub
+from .multiplayer import MultiplayerHub
+from .spectator import SpectatorHub
+
+SpectatorHubs = SpectatorHub()
+MultiplayerHubs = MultiplayerHub()
+MetadataHubs = MetadataHub()
+Hubs: dict[str, Hub] = {
+    "spectator": SpectatorHubs,
+    "multiplayer": MultiplayerHubs,
+    "metadata": MetadataHubs,
+}