fix(aci): Fix bug where issue detail links weren't working (#102491)

# Description
We were previously only check for alertRule information, but if we
create a monitor only using the new api, there isn't a back reference to
it. This will look at the occurrence and ensure it's a metric issue,
then determine if it's a legacy or new alert before constructing the
link, it prefers the legacy routing for now.

Author: saponifi3d

static/app/views/issueDetails/streamline/sidebar/detectorSection.tsx

@@ -9,6 +9,7 @@ import type {Organization} from 'sentry/types/organization';
 import type {Project} from 'sentry/types/project';
 import {getConfigForIssueType} from 'sentry/utils/issueTypeConfig';
 import {makeAlertsPathname} from 'sentry/views/alerts/pathnames';
+import {makeMonitorDetailsPathname} from 'sentry/views/detectors/pathnames';
 import {useIssueDetails} from 'sentry/views/issueDetails/streamline/context';
 import {SidebarSectionTitle} from 'sentry/views/issueDetails/streamline/sidebar/sidebar';
 
@@ -34,18 +35,36 @@ export function getDetectorDetails({
    * for Alert Rule IDs. Hopefully we can consolidate this when we move to the detector system.
    * Ideally, this function wouldn't even check the event, but rather the group/issue.
    */
-  const metricAlertRuleId =
-    event?.occurrence?.evidenceData?.alertId ||
-    event?.contexts?.metric_alert?.alert_rule_id;
-  if (metricAlertRuleId) {
+  const isMetricAlert =
+    !!event?.occurrence?.evidenceData?.alertId ||
+    !!event?.contexts?.metric_alert?.alert_rule_id ||
+    event?.occurrence?.type === 8001; // the issue type for metric issues is 8001
+
+  if (isMetricAlert) {
+    const metricAlertRuleId =
+      event?.occurrence?.evidenceData?.alertId ||
+      event?.contexts?.metric_alert?.alert_rule_id;
+
+    if (metricAlertRuleId) {
+      return {
+        detectorType: 'metric_alert',
+        detectorId: metricAlertRuleId,
+        detectorPath: makeAlertsPathname({
+          path: `/rules/details/${metricAlertRuleId}/`,
+          organization,
+        }),
+        // TODO(issues): We can probably enrich this description with details from the alert itself.
+        description: t(
+          'This issue was created by a metric alert detector. View the detector details to learn more.'
+        ),
+      };
+    }
+
+    const detectorId = event.occurrence?.evidenceData.detectorId;
     return {
       detectorType: 'metric_alert',
-      detectorId: metricAlertRuleId,
-      detectorPath: makeAlertsPathname({
-        path: `/rules/details/${metricAlertRuleId}/`,
-        organization,
-      }),
-      // TODO(issues): We can probably enrich this description with details from the alert itself.
+      detectorId,
+      detectorPath: makeMonitorDetailsPathname(organization.slug, detectorId, 'monitors'),
       description: t(
         'This issue was created by a metric alert detector. View the detector details to learn more.'
       ),