m/paliad#61 Slice C backend.
Schema (mig 116, idempotent):
- ALTER paliad.checklists ADD COLUMN version int NOT NULL DEFAULT 1.
Pre-Slice-C rows default to 1 (the column was added with DEFAULT
so the UPDATE clause is a no-op safety net).
- ALTER paliad.checklist_instances ADD COLUMN template_version int.
NULL on existing rows — instance detail page leaves the "outdated"
badge off when the snapshot version is unknown.
Services:
- ChecklistTemplateService.Update — version bumps on title/body
changes (the meaningful edits that warrant notifying instance
owners). Pure metadata tweaks (description/court/reference/deadline)
update updated_at without bumping. Emits the new 'checklist.versioned'
audit event with prior_version + new_version metadata.
- ChecklistInstanceService.Create — captures snapshot_version
alongside the body snapshot.
- ChecklistCatalogService — CatalogEntry grew a Version field
(1 for static; live column for authored). ListVisible / Find
populate it.
- Models — Checklist.Version int; ChecklistInstance.TemplateVersion *int.
- /api/checklists/{slug} response now includes version so the
instance detail page can compare against the snapshot.
Migration verified live via BEGIN..ROLLBACK against paliad.checklists
and paliad.checklist_instances.
Build hygiene: go build/vet/test ./internal/... + TestBootSmoke
./cmd/server/ all green.
mAi
fffddcc71a