test: cover IPMI, PSU, and SAT formatting

audit/internal/collector/ipmi_sel.go

@@ -80,10 +80,10 @@ func parseIPMISELOutput(output string) []schema.HardwareEventLog {
 func ipmiSELSeverity(event string) string {
 	lower := strings.ToLower(event)
 	switch {
-	case strings.Contains(lower, "critical") || strings.Contains(lower, "non-recoverable"):
-		return statusCritical
 	case strings.Contains(lower, "non-critical") || strings.Contains(lower, "warning") || strings.Contains(lower, "degraded"):
 		return statusWarning
+	case strings.Contains(lower, "critical") || strings.Contains(lower, "non-recoverable"):
+		return statusCritical
 	default:
 		return "info"
 	}