Add outside area bed workflow

- Add input for writing bed number in NuevoIngreso and EditIngreso
- Auto-complete area when selecting bed from dropdown
- Automatically create new bed with 'Fuera de area' when typing number
- Modify finalizarInternacion to delete bed only for outside area
- Add two-mode selection: select bed or write bed

src/App.tsx

@@ -194,6 +194,7 @@ function AppContent() {
             camas={store.camas}
             areas={store.areas}
             onIniciarInternacion={store.iniciarInternacion}
+            onAgregarCama={store.agregarCama}
             onVolver={() => store.setVista('internaciones')}
             getAreaName={(areaId) => store.areas.find(a => a.id === areaId)?.nombre || ''}
           />
@@ -219,6 +220,7 @@ function AppContent() {
             camas={store.camas}
             areas={store.areas}
             onActualizarInternacion={store.actualizarInternacion}
+            onAgregarCama={store.agregarCama}
             onVolver={() => store.setVista('historiaclinica')}
             getAreaName={(areaId) => store.areas.find(a => a.id === areaId)?.nombre || ''}
           />