-- Backup-Einstellungen (verschlüsselt mit dem Master-Schlüssel) und externe Ziele
CREATE TABLE backup_settings (
  `key` VARCHAR(50) PRIMARY KEY,
  value_enc TEXT NOT NULL,
  updated_by CHAR(36) NULL,
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)
);
CREATE TABLE backup_targets (
  id CHAR(36) PRIMARY KEY,
  name VARCHAR(100) NOT NULL UNIQUE,
  type ENUM('sftp','ftp','gdrive','local') NOT NULL,
  path VARCHAR(500) NOT NULL DEFAULT '',
  config_json JSON NOT NULL,
  secrets_enc TEXT NULL,
  host_key TEXT NULL,
  enabled TINYINT(1) NOT NULL DEFAULT 1,
  last_test_at DATETIME(3) NULL,
  last_test_ok TINYINT(1) NULL,
  last_test_error VARCHAR(400) NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)
);