Models:
- Convert Conversation and ChatMessage to SwiftData @Model classes with
a
one-to-many relationship and cascade delete.
- Rename ChatMessage.id to clientID and drop Conversation.id in favor of
jid
(the string id would clash with PersistentIdentifier).
- Keep MessageReaction as a Codable value stored in an array attribute.
Persistence:
- Add ArchiveStore, a per-account ModelContainer/ModelContext that
replaces
the JSON ChatArchive with load/save/erase.
- Add ArchiveMetadataRecord for the durable MAM checkpoints, cursor,
locally
deleted message IDs and roster contact JIDs.
- Add LegacyArchiveImporter to import the old JSON snapshot once and
delete
the file afterwards, preserving existing history.
AppModel:
- Replace ChatArchive with ArchiveStore and persist via context.save();
insert new models and delete the replaced object on upsert merges so
SwiftData never keeps an orphaned duplicate.
Tests:
- Replace ChatArchiveTests with ArchiveStoreTests (store round-trip and
legacy import) and drop the now-obsolete Codable round-trip
assertions.
wt