feat(migrations): Harden task audit tracking and optimize article templates

- Added migration to harden task audit tracking by modifying audit_logs and related tables.
- Introduced operator_id to several tables for better tracking of actions.
- Updated article_templates with new prompt templates for various article types, enhancing content generation.
- Created prompt_rules and schedule_tasks tables to manage content generation rules and scheduling.
- Added foreign key constraints to articles for better data integrity.

server/internal/tenant/app/workspace_service.go

@@ -126,7 +126,7 @@ func (s *WorkspaceService) TemplateCards(ctx context.Context) ([]TemplateCard, e
 			TemplateKey:      row.TemplateKey,
 			TemplateName:     row.TemplateName,
 			OriginType:       row.OriginType,
-			PromptVisibility: row.PromptVisibility,
+			PromptVisibility: effectivePromptVisibility(&row, actor.TenantID),
 		}
 		_ = json.Unmarshal(row.CardConfigJSON, &card.CardConfigJSON)
 		cards = append(cards, card)