Bundles did not record that a template was a derived slot template, so the
importer re-created every slot as a BASE template named after the slot.
- Export: TemplateDto gains an additive, null-omitted `Derivation`
(owner path + base path by stable names); a derived template carries only
its own rows (overrides/additions, not inherited placeholders). The closure
pulls in each derived template's base/owner; base orders first.
schemaVersion 1.1 -> 1.2, bundleFormatVersion stays 1.
- Import: base templates go through the ordinary passes; derived templates are
ordered topologically (DerivedTemplatePlan; cycle / duplicate / malformed =
preview Blocker + SemanticValidationException before anything is staged),
their owner and base resolved by path (#100 root rule), and the slot is
created with TemplateService.AddCompositionAsync, synced in place when it
already exists with the same base, or deleted+recomposed when the base
differs; own rows applied as overrides, then ResyncInheritedMembersAsync.
Missing owner/base fails that record (BundleImportDerivedTemplateUnresolved
audit + ImportResult warning), never creating a base in its place.
- Preview/diff: derived rows are keyed by qualified name and compared against
the target slot at the same owner path (own rows + base), so an unchanged
slot is Identical and a same-named base template is never matched.
- Pre-#118 bundles import exactly as before (new fixture
pre-118-derived-plaintext.scadabundle, written by a13aabc7). The field is in
content, pinned by the signed manifest's contentHash.
Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
Joseph Doherty
84a050420f