m/paliad#61 Slice B frontend pass.
Detail page (/checklists/{slug}) gains:
- Provenance line ("Erstellt von <author>") for authored templates,
populated from the catalog response's owner_display_name.
- Owner action buttons: Bearbeiten (links to
/checklists/templates/{slug}/edit per the Slice A hotfix), Teilen,
Löschen. Reveal driven by /api/me email match against the catalog
response's owner_email.
- global_admin action buttons: "Als Firmen-Vorlage hinterlegen"
(promote) when visibility != 'global'; "Aus Katalog entfernen"
(demote) when visibility == 'global'. Reveal driven by /api/me
global_role.
Share modal:
- Single modal with a kind-picker (Kollege / Office / Dezernat /
Projekt) and a matching select per kind — sections toggle on the
active kind.
- Recipient pickers populated from /api/users, /api/partner-units,
/api/projects (loaded in parallel on open). Office options use the
canonical 8-key set from internal/offices.
- Existing grants surface in a list under the form with per-row
Entfernen buttons; Revoke confirms before DELETE.
- Errors surface inline (recipient-required, generic share failure).
i18n: 32 new keys per language (DE+EN) under checklisten.share.*
and checklisten.detail.promote/demote/delete.*. Total 2653 keys.
Build hygiene: go build/vet/test ./internal/... + ./cmd/server/ all
green; bun run build clean.