The Task-8 reflection round-trip suite exposed five silent-data-loss paths in
non-template entity types:
- ExternalSystemDefinition.MaxRetries/RetryDelay dropped on import Add (and Overwrite
never updated them) — BuildExternalSystem + Overwrite branch now carry both.
- ExternalSystemMethod rows dropped on import Add — a new post-flush
PersistAddedExternalSystemMethodsAsync pass adds them (the entity has no parent
nav, so an Add can't cascade; idempotent vs the inline Overwrite sync).
- NotificationRecipient dropped on export — GetNotificationListByIdAsync now
Include(Recipients) instead of a bare FindAsync.
- TemplateFolder.ParentFolderId flattened on import Add — a new
ResolveFolderParentEdgesAsync second-pass rewire resolves ParentName→id,
mirroring the template inheritance/composition rewires.
Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj
Implement the central ConfigurationDatabase side of SMS notifications:
- NotificationConfiguration: EmailAddress now nullable (SMS-only recipients
carry a PhoneNumber, no email); add PhoneNumber nvarchar(32); add
SmsConfigurationConfiguration (AuthToken sized as the encrypted column,
mirroring SmtpConfiguration.Credentials; timeout/retry mapped REQUIRED for
ctor-default round-trip fidelity).
- ScadaBridgeDbContext: add SmsConfigurations DbSet, encrypt AuthToken at rest
via EncryptedStringConverter, and cover SmsConfiguration in the schema-only
secret-write guard.
- NotificationRepository: implement the four INotificationRepository SMS-config
methods (resolves the 4x CS0535), mirroring the SMTP methods' stage-only /
separate-SaveChangesAsync discipline.
- Migration AddSmsNotifications: idempotent (guarded) ALTER EmailAddress nullable,
ADD PhoneNumber, CREATE SmsConfigurations; Down reverses cleanly (backfills
NULL emails before restoring NOT NULL).