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Report slow and frozen frames as span data too #4723

@markushi

Description

@markushi

Description

As of now slow and frozen frames are collected and attached to the root transaction. But for Mobile Vitals to work, the app start spans need to have the frame data set on the span data hash too.

Example span payload:

"spans": [
    {
      "timestamp": 1742508702.814,
      "start_timestamp": 1742508700.431,
      "op": "app.start.cold",
      "span_id": "42dbf44cc31249b4",
      "parent_span_id": "7168f0ee0fb14b00",
      "trace_id": "a8317f799fbb4d4e90103fc8dff13829",
      "status": "ok",
      "description": "Cold Start",
      "origin": "auto.ui.activity",
      "data": {
        "thread.name": "main",
        "thread.id": "13245",
        "frames.slow": 1, <<<
        "frames.frozen": 0, <<<
        "frames.total": 136, <<<
        "frames.delay": 0.131674152, <<<
      },

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