feat: dashboard forecasts releases, tells what changed and weighs the load

The insights reading grows (GraphQL insights(since:), REST ?since=, MCP):
- planned releases with a likely (p50) and safe (p85) finish date from a
  Monte Carlo over the last six weeks of finished work, one after another,
  and a verdict against their target;
- with `since` (the viewer's last visit, kept in the browser): tickets
  created, finished and sent back from QA, and their mentions;
- each person's open points against what they closed per sprint lately;
- open tickets without estimate, area or assignee, or untouched for 90
  days, each count opening the list filtered (new noEstimate, noArea and
  updatedBefore filters).

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

libs/web/tracker/presenters/src/lib/pages/dashboard.page.ts

@@ -21,12 +21,17 @@ import {
   ProjectRole,
   QA_FAILED,
   StatusCategory,
+  TeamLoad,
 } from '@task-stream/web/tracker/domain';
 import { initials, ROLE, ROLE_TONE, statusLook, typeLook } from '../ui/copy';
 import { AgingComponent } from '../ui/insights/aging';
 import { BottlenecksComponent } from '../ui/insights/bottlenecks';
 import { RisksComponent } from '../ui/insights/risks';
 import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
+import { ReleaseForecastComponent } from '../ui/insights/release-forecast';
+import { ChangesSinceComponent } from '../ui/insights/changes-since';
+import { BacklogHealthComponent } from '../ui/insights/backlog-health';
+import { takeLastVisit } from '../ui/last-visit';
 
 /** "Seguimiento": the state of the whole project at a glance (live). */
 @Component({
@@ -41,6 +46,9 @@ import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
     RisksComponent,
     AgingComponent,
     BottlenecksComponent,
+    ReleaseForecastComponent,
+    ChangesSinceComponent,
+    BacklogHealthComponent,
   ],
   providers: [provideInsightsFacade()],
   template: `
@@ -102,10 +110,16 @@ import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
         />
       } @else if (insights.insights(); as reading) {
         <div class="ts-dashboard ts-insights">
+          @if (reading.changes; as changes) {
+            <ts-changes-since [changes]="changes" />
+          }
           @if (reading.sprint; as sprint) {
             <ts-sprint-pulse [sprint]="sprint" />
           }
           <ts-risks [risks]="reading.risks" />
+          @if (reading.releases.length) {
+            <ts-release-forecast [releases]="reading.releases" />
+          }
           <ts-aging
             [issues]="reading.aging.issues"
             [thresholdDays]="reading.aging.thresholdDays"
@@ -114,6 +128,7 @@ import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
             [statuses]="reading.bottlenecks"
             [workflow]="facade.workflow()"
           />
+          <ts-backlog-health [health]="reading.backlog" />
         </div>
       } @else {
         <pi-skeleton class="ts-insights-loading" shape="block" height="10rem" />
@@ -155,6 +170,12 @@ import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
                     } @else {
                       <span class="ts-pill">Ya no es miembro</span>
                     }
+                    @if (loadOf().get(person.id); as load) {
+                      @if (load.overloaded) {
+                        <span class="ts-pill ts-pill--warn">Sobrecarga</span>
+                      }
+                      <span class="ts-team__load">{{ loadText(load) }}</span>
+                    }
                   </span>
                   <span class="ts-bar" aria-hidden="true"
                     ><span
@@ -382,6 +403,14 @@ import { SprintPulseComponent } from '../ui/insights/sprint-pulse';
       gap: 0.25rem 0.5rem;
       min-width: 0;
     }
+    .ts-team__load {
+      flex-basis: 100%;
+      color: var(--ts-muted);
+      font-size: 0.75rem;
+    }
+    .ts-pill--warn {
+      --tone: var(--ts-c-red, #d14343);
+    }
     .ts-team__go {
       color: var(--ts-brand);
       opacity: 0;
@@ -424,10 +453,15 @@ export class DashboardPage {
   protected readonly facade = inject(ProjectFacade);
   protected readonly insights = inject(InsightsFacade);
 
+  /** Opened once per project: the project itself changes on every update. */
+  private openedFor: string | null = null;
+
   constructor() {
     effect(() => {
       const projectId = this.facade.project()?.id;
-      if (projectId) untracked(() => this.insights.open(projectId));
+      if (!projectId || projectId === this.openedFor) return;
+      this.openedFor = projectId;
+      untracked(() => this.insights.open(projectId, takeLastVisit(projectId)));
     });
   }
   protected readonly initialsOf = initials;
@@ -557,6 +591,25 @@ export class DashboardPage {
       (a, b) => b.open - a.open || a.name.localeCompare(b.name, 'es'),
     );
   });
+  /** Open points and usual pace per person (from the insights). */
+  protected readonly loadOf = computed(
+    () =>
+      new Map(
+        (this.insights.insights()?.team ?? []).map((t) => [t.user.id, t]),
+      ),
+  );
+  protected loadText(load: TeamLoad): string {
+    const parts = [`${load.openPoints} pts abiertos`];
+    if (load.pointsPerSprint !== null)
+      parts.push(
+        `cierra ${load.pointsPerSprint.toLocaleString('es')} por sprint`,
+      );
+    if (load.blocked)
+      parts.push(
+        `${load.blocked} ${load.blocked === 1 ? 'bloqueado' : 'bloqueados'}`,
+      );
+    return parts.join(' · ');
+  }
   protected readonly unassigned = computed(
     () => this.facade.stats()?.byAssignee.find((row) => !row.user)?.count ?? 0,
   );