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- backend POST /api/clinica-sync/import-pacientes (le aba 'pacientes' de um ID/URL, nao altera sheets_id nem a planilha) - endpoint set-id (opcional) para apontar planilha de backup - frontend: campo de ID/URL + botao Importar no card Backup; rotulo Restaurar->Importar Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>