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/web/tracker/domain/src/lib/models/models.ts

@@ -1,12 +1,11 @@
 import {
-  IssueArea,
   IssueLinkType,
   IssuePriority,
-  IssueStatus,
-  IssueType,
   ProjectRole,
   ReleaseStatus,
+  StatusCategory,
 } from './enums';
+import { ProjectSettings } from './workflow';
 
 export interface UserRef {
   id: string;
@@ -25,6 +24,7 @@ export interface Project {
   description: string | null;
   owner: UserRef;
   members: ProjectMember[];
+  settings: ProjectSettings;
   updatedAt: string;
   version: number;
 }
@@ -42,10 +42,12 @@ export interface IssueSummary {
   id: string;
   projectId: string;
   key: string;
-  type: IssueType;
-  area: IssueArea | null;
+  /** Ids of the project's settings. */
+  type: string;
+  area: string | null;
   title: string;
-  status: IssueStatus;
+  status: string;
+  statusCategory: StatusCategory;
   priority: IssuePriority;
   assignee: UserRef | null;
   release: { id: string; name: string } | null;
@@ -55,6 +57,12 @@ export interface IssueSummary {
   version: number;
 }
 
+/** A page of tickets: the ones returned and how many match in total. */
+export interface IssuePage {
+  items: IssueSummary[];
+  total: number;
+}
+
 export interface Issue extends IssueSummary {
   description: string | null;
   reporter: UserRef;
@@ -62,7 +70,7 @@ export interface Issue extends IssueSummary {
   storyPoints: number | null;
   dueDate: string | null;
   links: IssueLink[];
-  allowedTransitions: IssueStatus[];
+  allowedTransitions: string[];
   createdAt: string;
 }
 
@@ -104,7 +112,7 @@ export interface CountBy<T = string> {
 export interface ProjectStats {
   total: number;
   open: number;
-  byStatus: CountBy<IssueStatus>[];
+  byStatus: CountBy[];
   byType: CountBy[];
   byPriority: CountBy[];
   byArea: CountBy[];
@@ -112,11 +120,46 @@ export interface ProjectStats {
 }
 
 export interface BoardColumn {
-  status: IssueStatus;
+  status: string;
   issues: IssueSummary[];
   total: number;
 }
 
+export interface DurationStats {
+  count: number;
+  averageDays: number | null;
+  /** 85% of tickets take at most this long. */
+  p85Days: number | null;
+}
+
+/** Statistics of a project over the last days. */
+export interface ProjectAnalytics {
+  from: string;
+  to: string;
+  /** Per week (Monday, YYYY-MM-DD). */
+  createdVsResolved: { week: string; created: number; resolved: number }[];
+  /** Tickets in each status at the end of every day. */
+  cumulativeFlow: {
+    dates: string[];
+    series: { status: string; counts: number[] }[];
+  };
+  /** Start of work → done. */
+  cycleTime: DurationStats;
+  /** Creation → done. */
+  leadTime: DurationStats;
+  throughput: { week: string; user: UserRef | null; count: number }[];
+  qa: { passed: number; failed: number; failureRate: number | null };
+}
+
+/** Scope vs finished tickets of a release, day by day. */
+export interface ReleaseBurnup {
+  releaseId: string;
+  targetDate: string | null;
+  dates: string[];
+  scope: number[];
+  done: number[];
+}
+
 export interface UserDirectoryEntry {
   id: string;
   name: string;