docs(changelog): etapa 2 sprint 8

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CHANGELOG.md

@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Interface `Area` en domain/types.ts (Sprint 8)
+- Campos `areaId`/`areaName` en `Process` (Sprint 8)
+- Repositorio `supabaseAreaRepo` con CRUD completo para tabla `areas` (Sprint 8)
+- `fromRow`/`toRow`/`updateEditable`/`getById` en process-repo extendidos con `area_id` (Sprint 8)
 
 ## [0.8.0] - 2026-07-07
 ### Added