feat: dashboard weighs quality and splits work by a list field

The insights reading adds quality (open bugs per priority, bugs created
and closed per week for 8 weeks, QA returns and passes per area over 90
days, bugs reported in the 14 days after each of the last three
releases) and, for each list custom field, open tickets per option. The
dashboard shows both; the field to split by can be picked.

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

libs/api/tracker/presenters/src/lib/graphql/types.ts

@@ -928,6 +928,64 @@ export class BacklogHealthGql {
   @Field(() => Int) staleDays!: number;
 }
 
+@ObjectType('PriorityCount')
+export class PriorityCountGql {
+  @Field(() => IssuePriority) priority!: IssuePriority;
+  @Field(() => Int) count!: number;
+}
+
+@ObjectType('BugWeek', { description: 'Bugs created and closed in a week' })
+export class BugWeekGql {
+  @Field({ description: 'Monday (UTC), YYYY-MM-DD' }) week!: string;
+  @Field(() => Int) created!: number;
+  @Field(() => Int) closed!: number;
+}
+
+@ObjectType('QaByArea', { description: 'QA verdicts per area (90 days)' })
+export class QaByAreaGql {
+  @Field(() => String, { nullable: true, description: 'Null: no area' })
+  area!: string | null;
+  @Field(() => Int) returned!: number;
+  @Field(() => Int) passed!: number;
+}
+
+@ObjectType('EscapedBugs', {
+  description: 'Bugs reported in the 14 days after a release shipped',
+})
+export class EscapedBugsGql {
+  @Field(() => ID) releaseId!: string;
+  @Field() name!: string;
+  @Field() releasedAt!: string;
+  @Field(() => Int) bugs!: number;
+}
+
+@ObjectType('Quality', {
+  description: 'Bugs (types with the bug icon) and QA',
+})
+export class QualityGql {
+  @Field(() => [PriorityCountGql]) openBugsByPriority!: PriorityCountGql[];
+  @Field(() => [BugWeekGql], { description: 'Last 8 weeks, oldest first' })
+  bugWeeks!: BugWeekGql[];
+  @Field(() => [QaByAreaGql]) qaByArea!: QaByAreaGql[];
+  @Field(() => [EscapedBugsGql]) escaped!: EscapedBugsGql[];
+}
+
+@ObjectType('OptionCount')
+export class OptionCountGql {
+  @Field() value!: string;
+  @Field(() => Int) count!: number;
+}
+
+@ObjectType('FieldBreakdown', {
+  description: 'Open tickets per option of a list custom field',
+})
+export class FieldBreakdownGql {
+  @Field() fieldId!: string;
+  @Field(() => [OptionCountGql]) counts!: OptionCountGql[];
+  @Field(() => Int, { description: 'Open tickets with no value' })
+  none!: number;
+}
+
 @ObjectType('ProjectInsights', {
   description:
     'The dashboard: sprint under way, risks, aging, bottlenecks, release forecasts, team load, backlog health and changes',
@@ -947,4 +1005,9 @@ export class ProjectInsightsGql {
   changes!: ChangesSinceGql | null;
   @Field(() => [TeamLoadGql]) team!: TeamLoadGql[];
   @Field(() => BacklogHealthGql) backlog!: BacklogHealthGql;
+  @Field(() => QualityGql) quality!: QualityGql;
+  @Field(() => [FieldBreakdownGql], {
+    description: 'One per active list custom field',
+  })
+  fields!: FieldBreakdownGql[];
 }