SC: What happens when multiple triggers overlap?

### Describe the problem you discovered

This is an analysis issue. There may or may not be an issue.

Scenario: 2 triggers overlap once a day

```
# every day
actions triggered_by: interval, at: "0 0 0 * *" do
...
end

# every minutes
actions triggered_by: interval, at: "0 * * * *" do
...
end
```

Is this handled correctly? Should we allow it?

### Describe the solution you'd like

_No response_

Use the two interval-trigger examples in the issue as the starting scenario: one runs daily and one runs hourly, overlapping once per day. Determine whether the overlap is handled correctly and whether overlapping triggers should be allowed; done requires a documented decision about the behavior.

Written by the indexing model from the issue text.