#!/usr/bin/env python3
"""W-08b 点击开始玩：创建/恢复会话并进入运行态（返回 session 供前端初始化运行时）。"""
result = {'success': False, 'data': {}}
try:
    user_id = await get_user()
    game_id = params_kw.get('game_id', '')
    session_id = params_kw.get('session_id', '')
    world_id = params_kw.get('world_id', '')
    if not game_id:
        result['code'] = 400
        result['error'] = '缺少 game_id'
    else:
        data = await game_start_session(user_id, game_id, session_id, world_id)
        result['success'] = True
        result['data'] = data
except ValueError as e:
    result['code'] = 400
    result['error'] = str(e)
except Exception as e:
    result['error'] = str(e)
return json.dumps(result, ensure_ascii=False, default=str)