feat: alerts open bugs, and repeats of the same problem go to that bug

Owners and admins turn on a secret URL per project (Settings →
Integrations), POST /api/webhooks/alerts/{project}/{token}, that Sentry,
Uptime Kuma, Prometheus Alertmanager, Grafana or any tool sending JSON
with a title can call. A new problem opens a bug as TaskStream (label
«alerta», chosen type and priority); while that bug is open, the same
fingerprint goes to it (a comment at most every 30 minutes) and
«resolved» is said on it; once it is closed, a new bug names the old
one. Alerts of a project are handled one at a time, so two at once open
one bug, and a bug not yet projected still counts as open. Unknown
project, alerts off or a bad token all answer 403.

TaskStream may now comment as the system actor, like it already opened
tickets for public proposals. Stored in Mongo (alert_integrations,
alert_traces), not in the event store.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/api/tracker/presenters/src/lib/http/dto/responses.dto.ts

@@ -1366,3 +1366,36 @@ export class SharedDashboardDto {
   @ApiProperty({ type: [ActivityDayDto], nullable: true })
   activity!: ActivityDayDto[] | null;
 }
+
+// ---- Alerts → bugs ----------------------------------------------------------
+
+export class AlertIntegrationDto {
+  @ApiProperty() enabled!: boolean;
+  @ApiProperty({
+    type: String,
+    nullable: true,
+    description:
+      'Path of the URL on this API, secret token included; only owners and admins see it',
+    example: '/api/webhooks/alerts/0b4c…/9f2e…',
+  })
+  webhookPath!: string | null;
+  @ApiProperty({
+    type: String,
+    nullable: true,
+    description: "Ticket type it opens; null: the project's first bug type",
+  })
+  typeId!: string | null;
+  @ApiProperty({ enum: IssuePriority, enumName: 'IssuePriority' })
+  priority!: IssuePriority;
+}
+
+export class AlertOutcomeDto {
+  @ApiProperty({
+    enum: ['created', 'repeated', 'resolved', 'ignored'],
+    description:
+      'created: a new bug; repeated: it went to the open bug; resolved: said on it; ignored: not an alert, or over with nothing open',
+  })
+  action!: string;
+  @ApiProperty({ type: String, nullable: true, example: 'WEB-42' })
+  issueKey!: string | null;
+}