feat(game): 添加成都麻将游戏页面和大厅功能

- 实现 ChengduGamePage.vue 组件，包含完整的麻将游戏界面
- 实现 HallPage.vue 组件，支持房间列表展示、创建和加入功能
- 添加 mahjong API 接口用于房间管理操作
- 集成 store 状态管理和本地存储功能
- 实现 ChengduBottomActions 等游戏控制组件
- 添加 websocket 连接和游戏会话管理逻辑
- 实现游戏倒计时、结算等功能模块

src/views/HallPage.vue

@@ -5,7 +5,7 @@ import { AuthExpiredError, type AuthSession } from '../api/authed-request'
 import { createRoom, joinRoom, listRooms, type RoomItem } from '../api/mahjong'
 import { getUserInfo, type UserInfo } from '../api/user'
 import refreshIcon from '../assets/images/icons/refresh.svg'
-import { setActiveRoom } from '../store'
+import { setRoomMetaSnapshot } from '../store'
 import type { RoomPlayerState } from '../store/state'
 import type { StoredAuth } from '../types/session'
 import { clearAuth, readStoredAuth, writeStoredAuth } from '../utils/auth-storage'
@@ -254,7 +254,7 @@ async function submitCreateRoom(): Promise<void> {
     )
 
     createdRoom.value = room
-    setActiveRoom({
+    setRoomMetaSnapshot({
       roomId: room.room_id,
       roomName: room.name,
       gameType: room.game_type,
@@ -301,7 +301,7 @@ async function handleJoinRoom(room?: { roomId?: string; roomName?: string }): Pr
   roomSubmitting.value = true
   try {
     const joinedRoom = await joinRoom(session, { roomId: targetRoomId }, syncAuth)
-    setActiveRoom({
+    setRoomMetaSnapshot({
       roomId: joinedRoom.room_id,
       roomName: joinedRoom.name,
       gameType: joinedRoom.game_type,
@@ -355,7 +355,7 @@ async function enterCreatedRoom(): Promise<void> {
   }
 
   showCreatedModal.value = false
-  setActiveRoom({
+  setRoomMetaSnapshot({
     roomId: createdRoom.value.room_id,
     roomName: createdRoom.value.name,
     gameType: createdRoom.value.game_type,