Add round number to verdicts

[rautenrieth-da]

We want to associate verdicts and/or traffic summaries with rounds. Among others, this would allow the /v0/events endpoint to include the round even if there is no featured app party involved. Right now, the round is only included in the app_activity_records field which is null if there is no activity record.

See also the following comment from a user:

Hi Team, I start seeing the traffic_summary and app_activity_records on the mainnet. Here are two samples (the envelops details are omitted for simplicity).
sample 1
"traffic_summary": {
"total_traffic_cost": 7858,
..
},
"app_activity_records": null
},sample 2
"traffic_summary": {
"total_traffic_cost": 3200,
..
},
"app_activity_records": {
"round_number": 92814,
"records": [
{
"party": "raven-validator-1::1220e45c6287ebe1d4cf3ffd6dd50bbe50da74e71ddfdaf256979d615ed679991350",
"weight": 3200
}
]
}
}
I guess in the sample 1 there are no featured parties confirming this txn and therefore it is empty, while in the sample 2 the only featured party got all the 3200 bytes.

My understanding is that the round is recorded for the rewarding, and that's why it's in the app_activity_records. Is there a way to record the round number in the sample 1 case? That is I know in which round this txn is recorded though there are not featured parties confirming it?

The idea behind is I wish to calculate the total traffic for a given round. Ideally it is also reported in the traffic_summary or somewhere. Thanks.

TODO:

• Add a round_number column to scan_verdict_store, and populate it when ingesting verdicts.
• Change /v0/events and /v0/events/{event_id} to include the round number even if there are no activity records