curl -X POST "http://localhost:8000/api/v2/agents/my-agent/daily-summary" \
  -H "X-Session-Token: your_session_token" \
  -H "Content-Type: application/json" \
  -d '{"date": "2026-05-08"}'

{
  "agent_id": "my-agent",
  "session_id": "sess_abc123",
  "date": "2026-05-08",
  "summary": {
    "status": "success",
    "summary_path": "~/.memanto/summaries/my-agent_2026-05-08.md"
  },
  "export": {
    "status": "success",
    "total_memories": 42
  }
}

{
  "detail": "Invalid summary identifier"
}

{
  "detail": "Missing session token. Use X-Session-Token header."
}