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/infrastructure/src/lib/mongo/read-model.schemas.ts

@@ -107,6 +107,8 @@ export const ReadModels = {
   SavedFilter: 'SavedFilter',
   MyView: 'MyView',
   PinnedIssue: 'PinnedIssue',
+  AlertIntegration: 'AlertIntegration',
+  AlertTrace: 'AlertTrace',
   Sprint: 'SprintReadModel',
   GitIntegration: 'GitIntegration',
   OutgoingWebhook: 'OutgoingWebhook',
@@ -339,6 +341,25 @@ export const PinnedIssueSchema =
   SchemaFactory.createForClass(PinnedIssueDocument);
 PinnedIssueSchema.index({ ownerId: 1, issueId: 1 }, { unique: true });
 
+@Schema({ ...LOOSE, collection: 'alert_integrations' })
+class AlertIntegrationDocument {
+  @Prop({ type: String, required: true, unique: true }) projectId!: string;
+  @Prop({ type: String }) token!: string;
+}
+export const AlertIntegrationSchema = SchemaFactory.createForClass(
+  AlertIntegrationDocument,
+);
+
+@Schema({ ...LOOSE, collection: 'alert_traces' })
+class AlertTraceDocument {
+  @Prop({ type: String }) projectId!: string;
+  @Prop({ type: String }) fingerprint!: string;
+  @Prop({ type: String }) issueId!: string;
+}
+export const AlertTraceSchema =
+  SchemaFactory.createForClass(AlertTraceDocument);
+AlertTraceSchema.index({ projectId: 1, fingerprint: 1 }, { unique: true });
+
 @Schema({ ...LOOSE, collection: 'git_integrations' })
 class GitIntegrationDocument {
   /** The project's id. */
@@ -442,6 +463,8 @@ export const READ_MODEL_SCHEMAS = [
   { name: ReadModels.SavedFilter, schema: SavedFilterSchema },
   { name: ReadModels.MyView, schema: MyViewSchema },
   { name: ReadModels.PinnedIssue, schema: PinnedIssueSchema },
+  { name: ReadModels.AlertIntegration, schema: AlertIntegrationSchema },
+  { name: ReadModels.AlertTrace, schema: AlertTraceSchema },
   { name: ReadModels.CalendarFeed, schema: CalendarFeedSchema },
   { name: ReadModels.DashboardShare, schema: DashboardShareSchema },
   { name: ReadModels.PushSubscription, schema: PushSubscriptionSchema },