fix(alerts): include hashed query when constructing idents#382
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`PrometheusAlert.ID()` built identifiers from (alertType, teamSlug, environment, ruleGroup, name). Prometheus allows multiple alerting rules with the same name in a rule group (differentiated by query/duration), so distinct alerts produced identical IDs. We add a SHA-256 hash of the query as a 6th component in the ident, making each alert's ID unique.
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PrometheusAlert.ID()built identifiers from (alertType, teamSlug, environment, ruleGroup, name). Prometheus allows multiple alerting rules with the same name in a rule group (differentiated by query/duration), so distinct alerts produced identical IDs.We add a SHA-256 hash of the query as a 6th component in the ident, making each alert's ID unique.