### Context
For calendar and message sync job health monitoring, we used to
increment a counter in redis cache which could lead to concurrency
issue.
### Solution
- Update to a set structure in place of counter + use sAdd redis method
which is atomic
- Each minute another counter was incremented on a new cache key ->
Update to a 15s window
- Remove ONGOING status not needed. We only need status at job end (or
fail).
### Potential improvements
- Check for cache key existence before fetching data to avoid useless
call to redis ?
closes https://github.com/twentyhq/twenty/issues/10070
Context :
We want to implement some counters to monitor server health. First
counters will track : messageChannel sync status during job execution
and invalid captcha.
How :
Counters are stored in cache and grouped by one-minute windows.
Controllers are created for each metric, aggregating counter over a
five-minutes window.
Endpoints are public and will be queried by Prometheus.
closes https://github.com/twentyhq/core-team-issues/issues/55
