Is there an alarm message send level configuration?

Set alarm rules through the template and enabled, regardless of the alarm threshold is exceeded, alarm information is sent regularly, which seems very messy.

Start by tracing how alarm rules are configured through templates and how threshold evaluation triggers notifications. Clarify the intended send-level or rate-limiting behavior, then identify the relevant configuration and notification tests; done means the requested behavior is explicitly defined and covered by tests.

Written by the indexing model from the issue text.