docs: Update task index - Sprint 2 completed

Sprint 2 (P1) marked as completed:
- ST-2.1-PORTFOLIO-UI: 5 SP
- ST-2.2-MLM-UI: 8 SP
- ST-2.3-GOALS-UI: 8 SP

Progress: 53/49 SP executed (108% - includes planning phases)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

orchestration/tareas/_INDEX.yml

@@ -116,7 +116,7 @@ tareas_activas:
     titulo: "Auditoría y Planificación Frontend/UX-UI"
     fase_actual: "EJECUCION"
     sp_total: 49
-    sp_ejecutados: 32
+    sp_ejecutados: 53
     subtareas:
       sprint_1_p0:
         - "ST-1.1-RBAC-FRONTEND (5 SP) - COMPLETADA"
@@ -126,9 +126,12 @@ tareas_activas:
     sprint_1_commits:
       - "193b26f - [SPRINT-1] feat: Complete RBAC, Audit and Notifications frontend modules"
       sprint_2_p1:
-        - "ST-2.1-PORTFOLIO-UI (5 SP)"
-        - "ST-2.2-MLM-UI (8 SP)"
-        - "ST-2.3-GOALS-UI (8 SP)"
+        - "ST-2.1-PORTFOLIO-UI (5 SP) - COMPLETADA"
+        - "ST-2.2-MLM-UI (8 SP) - COMPLETADA"
+        - "ST-2.3-GOALS-UI (8 SP) - COMPLETADA"
+    sprint_2_completado: "2026-02-03"
+    sprint_2_commits:
+      - "891689a - [SPRINT-2] feat: Complete Portfolio, MLM and Goals UI modules"
       sprint_3_p2:
         - "ST-3.1-WCAG-IMPROVE (5 SP)"
         - "ST-3.2-UNIT-TESTS (5 SP)"