Remote session auto-publish fails when launched with --add-dir #5355

Describe the bug

With settings configured to auto-publish a remote settings, launching copilot with --add-dir <path> throws the following error when attempting to publish at launch:
"Could not publish the new session … host.publishSession failed: session publication failed".

The log shows:
[copilotd_hosting::attached] application catalog write failed {"error":"permission denied: <path>","operation":"publication"}.

Affected version

1.0.105, 1.0.106-9

Steps to reproduce the behavior

1. Configure copilot settings (~/.copilot/settings.json)

{
  "remoteSessions": true,
  "ahpEnvironment": {
    "acceptRemoteConnections": true,
    "publishNewSessionsByDefault": true
  }
}

2. copilot --add-dir <path> (any directory, including writable and trusted ones).

Expected behavior

The session publishes successfully.

Additional context

System: linux-x64