Web client, Chromium, 1280x800, light theme. Fresh isolated databases and synthetic replay conversations on each commit.

Base f6433dba45ae0022f17513e2c0cfc76a632eb835
{
  holdShell: true,
  armed: false,
  http: false,
  corrupted: 1,
  shellHeld: 5,
  baselineSockets: 2,
  subscriptions: 3,
  coldFailed: true,
  httpSeen: true,
  sockets: 2
}

Head b8323327d019e34fecfd796834f9afc1d33c4658
{
  holdShell: true,
  armed: false,
  http: false,
  corrupted: 1,
  shellHeld: 6,
  baselineSockets: 2,
  subscriptions: 4,
  coldFailed: true,
  httpSeen: true,
  sockets: 2
}

Base: conversation absent throughout the 15-second recovery observation.
Head: conversation appeared automatically and the sync indicator cleared.
Controls additionally reject a hidden page, changed socket count, absent HTTP fallback, or a corruption count other than one.
AI-assisted; verified with the tests and tools listed above.