feat: per-project workflow settings, statistics and "my work" home

Per-project settings (owners/admins, «Configuración» tab):
- Statuses with category (TODO, IN_PROGRESS, QA, DONE, CANCELLED), colour and
  "requires reason"; configurable transitions; ticket types (icon, colour) and
  areas. Defaults are the previous fixed values; projects created before keep
  them without migration.
- Values are archived, never deleted: tickets, history and statistics keep
  referring to them. Validated in the domain (ProjectSettingsChangedEvent).
- Releases, board, tracking and "my work" use categories, so custom statuses
  keep working. Status changes carry name/category metadata for history.
- GraphQL: status/type/area are strings (breaking for clients sending enum
  literals); Project.settings, updateProjectSettings, statusCategory,
  myIssues(categories). REST: PUT /projects/{project}/settings, category filters.
- Read model: statusCategory on issues (backfilled at startup).

Statistics («Estadísticas» tab):
- New issue_timeline projection; pure functions compute created vs resolved,
  cumulative flow, cycle/lead time (avg + p85), throughput per person, QA
  pass/fail and release burnup. GraphQL Project.analytics(days),
  Release.burnup; REST /projects/{project}/analytics, /releases/{id}/burnup.
- Web: SVG charts with validated light/dark palette, crosshair tooltip,
  keyboard navigation, legend and data table.

Home "Mi trabajo": my open tickets across projects grouped by category (QA
failures first), tickets waiting for QA, upcoming releases and "Ir a…".

Tests: domain/application specs, e2e scenario for settings and analytics,
facade tests. Docs, READMEs, schema.gql/openapi.json and Word/PDF updated.

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

libs/api/tracker/infrastructure/src/lib/mongo/read-model.schemas.ts

@@ -3,6 +3,7 @@ import {
   CommentReadModel,
   IssueLinkReadModel,
   IssueReadModel,
+  IssueTimelineEntry,
   ProjectReadModel,
   ReleaseReadModel,
 } from '@task-stream/api/tracker/domain';
@@ -21,6 +22,7 @@ export type IssueDoc = Doc<Omit<IssueReadModel, 'links'>> & {
 export type CommentDoc = Doc<CommentReadModel>;
 export type ReleaseDoc = Doc<ReleaseReadModel>;
 export type ActivityDoc = Doc<ActivityReadModel>;
+export type TimelineDoc = Doc<IssueTimelineEntry>;
 
 export const ReadModels = {
   Project: 'ProjectReadModel',
@@ -28,6 +30,7 @@ export const ReadModels = {
   Comment: 'CommentReadModel',
   Release: 'ReleaseReadModel',
   Activity: 'ActivityReadModel',
+  Timeline: 'IssueTimelineReadModel',
 } as const;
 
 const userRef = { _id: false, id: String, name: String };
@@ -59,6 +62,7 @@ export const IssueSchema = new Schema<IssueDoc>(
     projectId: { type: String, index: true },
     key: { type: String, unique: true },
     status: String,
+    statusCategory: String,
     reporter: userRef,
     assignee: userRef,
     release: { _id: false, id: String, name: String },
@@ -70,6 +74,7 @@ export const IssueSchema = new Schema<IssueDoc>(
   { ...loose, collection: 'issues_view' },
 );
 IssueSchema.index({ projectId: 1, status: 1, updatedAt: -1 });
+IssueSchema.index({ projectId: 1, statusCategory: 1 });
 IssueSchema.index({ 'assignee.id': 1 });
 IssueSchema.index({ 'release.id': 1 });
 IssueSchema.index({ title: 'text', description: 'text', key: 'text' });
@@ -102,12 +107,20 @@ export const ActivitySchema = new Schema<ActivityDoc>(
 ActivitySchema.index({ projectId: 1, occurredAt: -1 });
 ActivitySchema.index({ issueId: 1, occurredAt: -1 });
 
+/** Every status and release step of every ticket (statistics). */
+export const TimelineSchema = new Schema<TimelineDoc>(
+  { _id: String, projectId: String, issueId: String, at: String },
+  { ...loose, collection: 'issue_timeline' },
+);
+TimelineSchema.index({ projectId: 1, at: 1 });
+
 export const READ_MODEL_SCHEMAS = [
   { name: ReadModels.Project, schema: ProjectSchema },
   { name: ReadModels.Issue, schema: IssueSchema },
   { name: ReadModels.Comment, schema: CommentSchema },
   { name: ReadModels.Release, schema: ReleaseSchema },
   { name: ReadModels.Activity, schema: ActivitySchema },
+  { name: ReadModels.Timeline, schema: TimelineSchema },
 ];
 
 export function fromDoc<T extends { _id: string }>(