# Spec Delta

## Purpose

Protege los datos locales durante actualizaciones y ofrece una recuperación explícita cuando IndexedDB no puede abrirse o migrarse.

## ADDED Requirements

### Requirement: Apertura explícita de base
The system SHALL open and complete local database migrations before allowing operational views to run.

#### Scenario: Actualización compatible
- **GIVEN** data exists in an older supported schema
- **WHEN** the app starts after an update
- **THEN** migrations complete before the main UI mounts
- **AND** existing records remain available

### Requirement: Recuperación ante error
The system SHALL show a recovery screen when the local database cannot be opened.

#### Scenario: Migración fallida
- **WHEN** database opening fails
- **THEN** the app shows an actionable error
- **AND** no operational action is rendered as if data were empty
- **AND** user can explicitly reset local data

### Requirement: Reset manual
The system SHALL require explicit confirmation before deleting all local data.

#### Scenario: Reset confirmado
- **WHEN** user confirms reset from maintenance
- **THEN** local database is deleted and recreated on reload
- **AND** the app starts with an empty environment