feat(signalr): graceful state manager

app/models/metadata_hub.py

@@ -3,6 +3,8 @@ from __future__ import annotations
 from enum import IntEnum
 from typing import Any, Literal
 
+from app.models.signalr import UserState
+
 from pydantic import BaseModel, ConfigDict, Field
 
 
@@ -126,7 +128,7 @@ UserActivity = (
 )
 
 
-class MetadataClientState(BaseModel):
+class MetadataClientState(UserState):
     user_activity: UserActivity | None = None
     status: OnlineStatus | None = None
 

app/models/signalr.py

@@ -64,3 +64,8 @@ class NegotiateResponse(BaseModel):
     connectionToken: str
     negotiateVersion: int = 1
     availableTransports: list[Transport]
+
+
+class UserState(BaseModel):
+    connection_id: str
+    connection_token: str

app/models/spectator_hub.py

@@ -9,7 +9,7 @@ from app.models.beatmap import BeatmapRankStatus
 from .score import (
     ScoreStatisticsInt,
 )
-from .signalr import MessagePackArrayModel
+from .signalr import MessagePackArrayModel, UserState
 
 import msgpack
 from pydantic import BaseModel, Field, field_validator
@@ -128,7 +128,7 @@ class StoreScore(BaseModel):
     replay_frames: list[LegacyReplayFrame] = Field(default_factory=list)
 
 
-class StoreClientState(BaseModel):
+class StoreClientState(UserState):
     state: SpectatorState | None = None
     beatmap_status: BeatmapRankStatus | None = None
     checksum: str | None = None