refactor: version 2.18.2 -- Panel: se quita "Mis actividades pendientes"

El detalle vive en los popups de las tarjetas; se elimina tambien la consulta
myPendingActivities del backend, que quedaba sin uso.

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

frontend/src/pages/Dashboard/DashboardPage.jsx

@@ -63,7 +63,7 @@ export default function DashboardPage() {
   const [detail, setDetail] = useState(null);
 
   if (!data) return <div className="text-muted">{t('common_loading')}</div>;
-  const { kpis, myActivities, projectsByStatus } = data;
+  const { kpis, projectsByStatus } = data;
   const activeTotal = Number(kpis.activeProjects) || 0;
   const nonCancelledTotal = Number(kpis.nonCancelledProjects) || 0;
   const activitiesTotal = Number(kpis.nonCancelledActivities) || 0;
@@ -125,21 +125,6 @@ export default function DashboardPage() {
         />
       </div>
 
-      <div className="panel-card">
-        <h3>{t('dashboard_my_activities')}</h3>
-        {myActivities.length === 0 && <div className="text-muted">{t('common_empty')}</div>}
-        {myActivities.map((a) => (
-          <div key={a.id} onClick={() => navigate(`/proyectos/${a.project_id}`)} style={ROW_STYLE}>
-            <div style={{ flex: 1 }}>
-              <div style={{ fontSize: '.82rem', fontWeight: 600 }}>{a.name}</div>
-              <div className="text-muted" style={{ fontSize: '.72rem' }}>{a.project_name} · {a.due_date || '—'}</div>
-            </div>
-            <div style={{ width: 120 }}><ProgressBar value={Number(a.progress_pct)} /></div>
-            <DueBadge status={a.dueStatus} />
-          </div>
-        ))}
-      </div>
-
       <div className="panel-card">
         <h3>{t('dashboard_projects_by_status')}</h3>
         {projectsByStatus.map((s) => (