AFTER — real T3 server + CLI; fresh isolated data
Client: Evidence client (real authenticated WebSocket)

1. WebSocket opened
Connections subscription: connected = true

2. While WebSocket remains OPEN:
$ t3 auth session list --json
{
  "client": {
    "label": "Evidence client",
    "deviceType": "bot"
  },
  "connected": true
}
Server Connections data: connected = true
CLI agrees with server: true

3. After WebSocket close acknowledged:
$ t3 auth session list --json
{
  "client": {
    "label": "Evidence client",
    "deviceType": "bot"
  },
  "connected": false
}