Metric mismatch between proto and elasticsearch

**Describe the bug**
Some stats fields in elasticsearch are missing maybe due to a mistmatch between what is send to kafka, and what the monitoring-indexed is expecting.

**Expected behavior**
Metrics should match

**Screenshots**
Metrics related to stats are missing in elasticsearch :

Here what's kafka is receiving from cuebot :

what's the monitoring-indexer is expecting :

And what's the job.proto is supposed to send

The documentation also doesn't seems to reflect the schema we are expecting : https://docs.opencue.io/docs/reference/monitoring-reference/#event-payload-schemas

Not sure if its related, but if i try to execute : opencue.wrappers.monitoring.getFarmStatistics()

I got this error :

```grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
status = StatusCode.UNIMPLEMENTED
details = "Method not found: monitoring.MonitoringInterface/GetFarmStatistics"
debug_error_string = "UNKNOWN:Error received from peer {grpc_status:12, grpc_message:"Method not found: monitoring.Mo
nitoringInterface/GetFarmStatistics"}"
```

**Version Number**
1.15

Compare the schemas shown for job.proto, Kafka's cuebot payload, the monitoring-indexer expectations, and the monitoring reference documentation. Start by tracing the stats fields across those entry points and reproduce the getFarmStatistics() call; done means the stats metrics match in Elasticsearch, the documentation reflects the schema, and the RPC no longer reports UNIMPLEMENTED.

Written by the indexing model from the issue text.