feat(kol): expand variable schema and polish KOL UI

- Add length/range limits to KOL variable definitions: max_length and
  default_value for input/textarea, min_value/max_value/default_number
  for number. Backend validates and normalizes; frontend renders limit
  inputs in KolVariableConfig and applies limits at runtime in
  KolDynamicForm.
- Sort workspace cards by most recent prompt/package update, falling
  back to granted_at. Adds updated_at to KolWorkspaceCard.
- Polish TemplatesView, WorkspaceView, and KOL package management UI;
  route create/update/publish/archive/delete toasts through i18n and
  expand package form copy and status labels.
- Remove stale KnowledgeView.vue.patch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/internal/tenant/repository/queries/workspace.sql

@@ -49,6 +49,7 @@ LIMIT 1;
 
 -- name: ListKolCardsForTenant :many
 SELECT sp.id AS subscription_prompt_id, sp.granted_at,
+       GREATEST(p.updated_at, k.updated_at)::timestamptz AS updated_at,
        p.name AS prompt_name, p.platform_hint,
        k.name AS package_name, k.cover_url AS package_cover,
        pf.display_name AS kol_display_name
@@ -60,5 +61,5 @@ WHERE sp.tenant_id = sqlc.arg(tenant_id)::bigint
   AND sp.status = 'active'
   AND p.status = 'active'
   AND p.published_revision_no IS NOT NULL
-ORDER BY sp.granted_at DESC
+ORDER BY GREATEST(p.updated_at, k.updated_at)::timestamptz DESC, sp.granted_at DESC
 LIMIT 8;