GET /api/technology/time-analysis/{task_id}
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{
  "task": {
    "task_id": "123e4567-e89b-12d3-a456-426614174000",
    "state": "done"
  },
  "result": {
    "channel_analyses": [
      {
        "channel_number": 0,
        "speech_duration": 34,
        "speech_rate": 8.6,
        "total_duration": 58.3
      },
      {
        "channel_number": 1,
        "speech_duration": 14,
        "speech_rate": 9.5,
        "total_duration": 58.3
      }
    ],
    ...
  }
}